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In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated...

Look up aperture in Wiktionary, the free dictionary. The aperture of an optical system is the opening that limits the amount of light that can pass through...

"Aperture" is a song by the British singer and songwriter Harry Styles. It was released on 22 January 2026 through Erskine and Columbia Records as the...

also known as the inverse relative aperture, because it is the inverse of the relative aperture, defined as the aperture diameter divided by the focal length...

Aperture is a discontinued professional image organizer and editor developed by Apple between 2005 and 2015 for the Mac, as a professional alternative...

The piriform aperture, pyriform aperture, or anterior nasal aperture is a pear-shaped opening in the human skull. Its long axis is vertical, and narrow...

In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes the range of angles over which the system can...

a woman, Chell, who is forced to undergo a series of tests within the Aperture Science Enrichment Center by a malicious artificial intelligence, GLaDOS...

Synthetic-aperture radar (SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as...

opening (aperture) at its center. The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture. Thus it...

An aperture grille is one of two major technologies used to manufacture color cathode-ray tube (CRT) televisions and computer displays; the other is the...

Aperture Foundation is a nonprofit arts institution, founded in 1952 by Ansel Adams, Minor White, Barbara Morgan, Dorothea Lange, Nancy Newhall, Beaumont...

The median aperture (median aperture of fourth ventricle or foramen of Magendie) is an opening at the caudal portion of the roof of the fourth ventricle...

sight inserts, and adjustable aperture mechanisms. Front aperture size is a compromise between a tight enough aperture to clearly define the aiming point...

Aperture priority, often abbreviated A or Av (for aperture value) on a camera mode dial, is a mode on some cameras that allows the user to set a specific...

The Aperture is a restaurant in Cincinnati, Ohio, which opened in January 2024. The New York Times named it to their list of Best Restaurants in 2024....

Aperture magazine, based in New York City, is an international quarterly journal specializing in photography. Founded in 1952, Aperture magazine is the...

recorded in various locations, including London and Berlin. Its lead single "Aperture" was released on 22 January 2026, while its second single, "American Girls"...

Aperture Tag: The Paint Gun Testing Initiative is a 2014 puzzle-platform game developed and published by the Aperture Tag Team for Windows and OS X. Unlike...

Aperture Desk Job is a 2022 action game developed and published by Valve. Set in Aperture Science of the Portal games, the player controls a character...

Emotional aperture has been defined as the ability to perceive features of group emotions. This skill involves the perceptual ability to adjust one's focus...

or it might be interchangeable with lenses of different focal lengths, apertures, and other properties. While in principle a simple convex lens will suffice...

The Five-hundred-meter Aperture Spherical Telescope (FAST; Chinese: 五百米口径球面射电望远镜), nicknamed Tianyan (天眼, lit. "Sky's/Heaven's Eye"), is a radio telescope...

Coded apertures or coded-aperture masks are grids, gratings, or other patterns of materials opaque to various wavelengths of electromagnetic radiation...

Interferometric synthetic aperture radar, abbreviated InSAR (or deprecated IfSAR), is a radar technique used in geodesy and remote sensing. This geodetic...

Aperture Entertainment is a management and production company founded by Adam Goldworm in March 2009. Aperture Entertainment represents writers, directors...

In computing, an aperture is a portion of physical address space (i.e. physical memory) that is associated with a particular peripheral device or a memory...

Apertures are thin, soft spots on pollen grain walls. When pollen germinates, a tube grows out through these weak spots to carry sperm cells to the egg...

The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where the head-foot part of the body of the animal...

Aperture synthesis or synthesis imaging is a type of interferometry that mixes signals from a collection of telescopes to produce images having the same...

Inverse synthetic-aperture radar (ISAR) is a radar technique using radar imaging to generate a two-dimensional high resolution image of a target. It is...

whether foreground or background or both. It is created by using a wide aperture lens. Some photographers incorrectly restrict use of the term bokeh to...

The superior thoracic aperture, also known as the thoracic outlet, or thoracic inlet refers to the opening at the top of the thoracic cavity. It is also...

The lateral aperture, lateral aperture of fourth ventricle or foramen of Luschka (after anatomist Hubert von Luschka) is an opening at the lateral extremity...

Synthetic-aperture sonar (SAS) is a form of sonar in which sophisticated post-processing of sonar data is used in ways closely analogous to synthetic-aperture radar...

The angular aperture a {\displaystyle a} of a lens is the angular size of the lens aperture as seen from the focal point: a = 2 arctan ⁡ ( D / 2 f ) =...

An aperture card is a punched card with a cut-out window into which a chip of microfilm is mounted. The card is typically punched with machine-readable...

Telescopes with aperture diameter >8 metres This list of the largest optical reflecting telescopes with objective diameters of 3.0 metres (120 in) or greater...

Aperture Hand Lab is a 2019 virtual reality (VR) game developed by Cloudhead Games and published by Valve. Set in the Portal universe, the player controls...

Aperture masking interferometry (or Sparse aperture masking) is a form of speckle interferometry, that allows diffraction limited imaging from ground-based...

In electromagnetics and antenna theory, the aperture of an antenna is defined as "A surface, near or on an antenna, on which it is convenient to make assumptions...

waves from straight-line propagation due to an obstacle or through an aperture, without any change in their energy. Diffraction is the same physical effect...

secondary mirror in reflecting telescopes, or edges of non-circular camera apertures, and around eyelashes and eyelids in the eye. While similar in appearance...

The choanae (sg.: choana), posterior nasal apertures or internal nostrils are two openings found at the back of the nasal passage between the nasal cavity...

The Paris Photo–Aperture Foundation PhotoBook Awards is a yearly photography book award that is given jointly by Paris Photo and Aperture Foundation. It...

A very-small-aperture terminal (VSAT) is a two-way satellite ground station with a dish antenna that is smaller than 3.8 meters. The majority of VSAT antennas...

solved by teleporting the player's character and simple objects using the "Aperture Science Handheld Portal Device", also referred to as the "portal gun",...

Aperture Photometry Tool (APT) is software with a graphical user interface for computing aperture photometry on astronomical imagery. Image overlays,...

The aperture of a right circular cone is the maximum angle between two generatrix lines; if the generatrix makes an angle θ to the axis, the aperture is...

Nasal aperture may refer to: Posterior nasal apertures Anterior nasal aperture This disambiguation page lists articles associated with the title Nasal...

The aperture may be of a type that fits closely with a receiving aperture on any number of mechanical devices. The close fitting of the apertures ensures...

of the best-focused spot of light that a perfect lens with a circular aperture can make, limited by the diffraction of light. The Airy disk is of importance...

Synthetic aperture ultrasound (SAU) imaging is an advanced form of imaging technology used to form high-resolution images in biomedical ultrasound systems...

NASA-ISRO Synthetic Aperture Radar (NISAR) is an Earth observation satellite (EOS) equipped with dual-frequency synthetic-aperture radar (SAR) jointly...

focus, aperture and shutter speed. Light enters the camera through an aperture, an opening adjusted by overlapping plates called the aperture ring. Typically...

extended to meet new requirements related to metering, autofocus, and aperture control. The large variety of F-mount compatible lenses makes it the largest...

Aperture of pelvis may refer to: Pelvic inlet, or superior aperture of the pelvis Pelvic outlet, or inferior aperture of the pelvis This disambiguation...

the company manufactures seabed imaging technology including synthetic aperture sonar (SAS) systems. Kraken Robotics was founded in 2012 as Kraken Sonar...

Aperture value may refer to: A v {\displaystyle A_{v}} in the APEX system (Additive System of Photographic Exposure) Aperture value mode (Av mode), an...

receiving. The concepts of main and sidelobes, radiation pattern, aperture shapes, and aperture weighting, apply to optics (another branch of electromagnetics)...

and 94 GHz. The world's largest filled-aperture (i.e. full dish) radio telescope is the Five-hundred-meter Aperture Spherical Telescope (FAST) completed...

The pelvic inlet or superior aperture of the pelvis is a planar surface which defines the boundary between the pelvic cavity and the abdominal cavity (or...

types. In optical terms, the anatomical pupil is the eye's aperture and the iris is the aperture stop. The image of the pupil as seen from outside the eye...

Aperture Peak is a 13,265-foot-elevation (4,043-meter) mountain summit located in Inyo County, California, United States. Aperture Peak is set within the...

The graphics address remapping table (GART), also known as the graphics aperture remapping table, or graphics translation table (GTT), is an I/O memory...

can be applied, and shows Fraunhofer diffraction patterns for various apertures. A detailed mathematical treatment of Fraunhofer diffraction is given...

image of the physical aperture, as 'seen' through the optical elements in front of the stop. The corresponding image of the aperture stop as seen through...

synthetic aperture radar (SAR) and inverse synthetic aperture radar (ISAR) imaging. Emerging technology utilizes monopulse radar 3-D imaging. Real aperture radar...

single-player campaign, players control Chell, who navigates the dilapidated Aperture Science Enrichment Center during its reconstruction by the supercomputer...

Aperture is the sixth studio album by American band the Head and the Heart. It was released on May 9, 2025, by the band's own label Every Shade of Music...

The laryngeal inlet (laryngeal aditus, laryngeal aperture) is the opening that connects the pharynx and the larynx. Its borders are formed by:[citation...

an aperture with a diameter smaller than the excitation wavelength, resulting in an evanescent field (or near-field) on the far side of the aperture. When...

Synthetic-aperture magnetometry (SAM) is a method for analysis of data obtained from magnetoencephalography (MEG) and electroencephalography (EEG). SAM...

of Aperture Science. In the early days, the company was named Aperture Fixtures and made shower curtains for the military. It later became Aperture Science...

proportional to the diameter of its objective's entrance aperture. For telescopes with circular apertures, the size of the smallest feature in an image that...

other manufacturers, and are still produced as excellent intermediate aperture lenses. The Tessar design uses four spherical lens elements in three groups...

thoracic cavity, a superior thoracic aperture known as the thoracic inlet and a lower inferior thoracic aperture known as the thoracic outlet. The thoracic...

Optical Aperture Synthesis Telescope, is a multi-element optical astronomical interferometer with baselines of up to 100 metres, which uses aperture synthesis...

elements per se; it is established by the location of the aperture stop in the lens. The aperture stop selectively passes and blocks light rays passing through...

Verve Records and have released six albums. Their sixth studio album, Aperture, was released on May 9, 2025. The members met and the band was formed through...

(illuminance) to the aperture size is known as the F-number. Dynamic aperture is keeping this number constant by growing the aperture with the imaging depth...

Fraunhofer diffraction pattern for several different forms of diffracting apertures, specially for normally incident monochromatic plane wave. A qualitative...

1/film-speed-number (aperture and shutter speed, respectively). For example: On a sunny day at ISO 100 ("100 speed film"), the aperture is set to f/16 and...

camera adjusts the aperture to ensure correct exposure. This is different from manual mode, where the user must decide both values, aperture priority where...

"preset" aperture, which lets the photographer set the lens to working aperture, and then quickly switch between working aperture and full aperture without...

is equipped with infrared search and track system AN/AAQ-37 Distributed Aperture System (DAS), which consists of six IR sensors around the aircraft for...

subject (object to be imaged), the acceptable circle of confusion size, and aperture. The approximate depth of field can be given by: DOF ≈ 2 u 2 N c f 2 {\displaystyle...

is an astronomical observatory featuring an optical telescope with an aperture for its primary mirror from 20 metres up to 100 metres across, when discussing...

telescope's objective, or aperture. Aperture rank currently goes approximately by the usable physical aperture size and not by aperture synthesis, although...

complemented by four movable Auxiliary Telescopes (ATs) with 1.8-metre (5.9 ft) apertures. The VLT is capable of observing both visible and infrared wavelengths...

It was notable for its relatively light weight, simple design and fast aperture. The name "Sonnar" is derived from the German word "Sonne", meaning sun...

The AN/AAQ-37 Distributed Aperture System (DAS) is the first of a new generation of sensor systems being fielded on the Lockheed Martin F-35 Lightning...

limited by diffraction to the ratio of the wavelength of the waves to the aperture width. For this reason, high-resolution imaging systems such as astronomical...

tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects...

for synthetic aperture photometry and PSF-fitting photometry. SExtractor and Aperture Photometry Tool are popular examples for aperture photometry. The...

The history of synthetic-aperture radar begins in 1951, with the invention of the technology by mathematician Carl A. Wiley, and its development in the...

instruments have now been replaced by the current (3 small-aperture telescopes and one large-aperture telescope) telescopes of the Simons Observatory. These...

available, allowing the mounting of lenses (without autofocus or auto aperture) from Canon, Nikon, Pentax, Minolta, Contax/Yashica, Konica and more. This...

coefficient, the z-scan setup is used in its open-aperture form. In open-aperture measurements, the far-field aperture is removed and the whole signal is measured...

which allowed an aperture value to be pre-selected without actually closing the aperture, with a separate ring to close down the aperture quickly to the...

The basic rule is: "For astronomical photos of the Moon's surface, set aperture to f/11 and shutter speed to the [reciprocal of the] ISO film speed [or...

photography committee at the Museum of Modern Art in New York, and chairman of Aperture, a photography magazine. Shirley Carter Burden was born on December 9,...

of light reaching the retina. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm. Eye color is defined by the iris. The...

Astrophysics Decadal Survey recommended development of a "large (~6 m aperture) infrared/optical/ultraviolet (IR/O/UV) space telescope", with the science...

The Sigma 18-35mm f/1.8 DC HSM Art lens is a fast, constant-aperture wide standard zoom lens made by Sigma Corporation. It was announced April 18, 2013...

Synthetic thinned aperture radiometry (STAR) is a method of radar in which the coherent product (correlation) of the signal from pairs of antennas is measured...

entering the lens. Doing so allows the photographer to select combinations of aperture, exposure time and sensor sensitivity that would otherwise produce overexposed...

FE 24-70mm F2.8 GM II is the second generation premium constant maximum aperture full-frame (FE) standard zoom lens for the Sony E-mount, released in April...

The dynamic aperture is the stability region of phase space in a circular accelerator. In the case of protons or heavy ion accelerators, (or synchrotrons...

shutters, the process was further simplified by allowing the shutter and aperture controls to be linked such that, when one was changed, the other was automatically...

(diameter) of the aperture of a lens, resulting in reducing the amount of light entering the iris of a lens. Reducing the aperture size increases the...

original XA was a rangefinder camera with a fast 35 mm f/2.8 lens, and aperture priority metering. It was one of the smallest rangefinder cameras ever...

versions of the lens, the aperture must be set manually. For Nikon there are versions with and without a chip to communicate aperture information with the...

its most complete state, it serves as a sort of "trapdoor" to close the aperture of the shell when the soft parts of the animal are retracted. The shape...

mm equivalent focal length of 41 mm, making it a normal lens of maximum aperture f/2.8. The intended benefit of this lens is its extreme compact size, extending...

achieves this by: Minimising mechanical complexity, removing mechanical aperture and focus drive. Shortening the flange focal distance to 18 mm compared...

possess an operculum that seals the opening of the shell, known as the aperture, which provides further protection. The study of mollusc shells is known...

In telecommunications, launch numerical aperture (LNA) is the numerical aperture of an optical system used to couple (launch) power into an optical fiber...

where an object seen through an aperture appears to shrink in apparent size as the observer approaches the aperture. The paradox takes place when the...

Autofocus accuracy within 1/3 of the depth of field (DOF) at the widest aperture of the lens is common in professional AF SLR cameras. Most multi-sensor...

following lenses: 50 MP wide-angle lens with an f/1.6 aperture on the base model and an adjustable aperture ranging from f/1.4 to f/4.0 on the Pro model, featuring...

half as much light in as 1⁄250. The camera's shutter speed, the lens's aperture or f-stop, and the scene's luminance together determine the amount of light...

Aperture is the debut studio album by American musician Hannah Jadagu. It was recorded at Greasy Records studio in Paris and released on record label Sub...

with anamorphic lenses. Due to differences in the camera gate aperture and projection aperture mask sizes for anamorphic films, however, the image dimensions...

produce images with the angular resolution of a huge telescope with an aperture equal to the separation, called baseline, between the component telescopes...

Z 24-200 mm f/4–6.3 VR is a full-frame superzoom lens with a variable aperture of f/4–6.3, manufactured by Nikon for use on Nikon Z-mount mirrorless cameras...

called the aperture efficiency. The aperture efficiency of typical parabolic antennas is 0.55 to 0.70. It can be seen that, as with any aperture antenna...

NIKKOR Z 28-400 mm f/4–8 VR is a full-frame superzoom lens with a variable aperture of f/4–8, manufactured by Nikon for use on Nikon Z-mount mirrorless cameras...

an f/1.8 aperture, phase detection autofocus, and optical image stabilization; a 12 MP Sony IMX258 ultrawide-angle lens with an f/2.2 aperture and a 123°...

SAFIR (or Single Aperture Far-InfraRed) is a proposed NASA space observatory for far-infrared light. The plan calls for a single large mirror 5–10 meters...

Antenna [aperture] illumination efficiency is a measure of the extent to which an antenna or array is uniformly excited or illuminated. It is typical for...

lens comes in three different versions, all of which have fixed maximum aperture at all focal lengths, and are L-series lenses. f/4L IS USM f/2.8L IS USM...

different objective lens with different numerical apertures. Condensers typically consist of a variable-aperture diaphragm and one or more lenses. Light from...

Synthetic Aperture Personality Assessment (SAPA) is a method used for telemetric assessment of individual differences, primarily in the context of online...

Cambridge, UK and is home to a number of the largest and most advanced aperture synthesis radio telescopes in the world, including the One-Mile Telescope...

or 1/200 s. The camera could also sync with flash, and has a range of aperture settings, from f/2.8 to f/22. In flash sync mode, the shutter is set at...

antenna aperture. Therefore, when selecting the earth station aperture, it is not a case of the smaller, the better. The earth station aperture should...

forms on a surface when projected through an aperture. For an electromagnetic wave passing through an aperture and hitting a screen, the Fresnel number F...

setting on the aperture dial, which gives the body control of the aperture. Other, numeric settings are used for manual aperture modes—aperture priority and...

maximum amount of system memory available to AGP is defined as the AGP aperture. Thus a trade-off could be realized in which the newly gained bandwidth...

Henri Chrétien. Ritchey constructed the first successful RCT, which had an aperture diameter of 60 cm (24 in) in 1927 (Ritchey 24-inch reflector). The second...

lets you choose manually the aperture and shutter speed. Av (Aperture priority): The camera lets the user choose the aperture (f/) value and then automatically...

effects of twinkling are reduced by using a larger receiver aperture; this effect is known as aperture averaging. Many modern large telescopes also use adaptive...

uncorrected systems are, in general, ill-defined and often blurred if the aperture or field of view exceeds certain limits. The investigations of James Clerk...

pelvis is very irregular; the space enclosed by it is named the inferior aperture or pelvic outlet. It is an important component of pelvimetry. It has the...

The Carl Zeiss Planar 50mm f/0.7 is one of the largest relative aperture (fastest) lenses in the history of photography. The lens was developed for the...

increase in beam diameter or radius with distance from the optical aperture or antenna aperture from which the beam emerges. The term is relevant only in the...

came out in 1977 with electronic control exposure modes, specifically Aperture Priority, Shutter Priority, Full Manual modes, as well as an "off the mode...

with an aperture (hole) for controlling the entry of light into a camera. A thin piece of metal (the diaphragm) is drilled with a hole (the aperture); a set...

speed is the maximum aperture diameter, or minimum f-number, of a photographic lens. A lens with a larger than average maximum aperture (that is, a smaller...

Elmarit is used by Leica to designate camera lenses that have a maximum aperture of f/2.8. The Elmarit is a derivation of the Elmar. Confusingly not all...

same time the M system was renamed OM System. The camera included a full-aperture TTL Cadmium-sulphide (CdS) exposure meter, and a bayonet lens mount of...

versions of the lens, the aperture must be set manually. For Nikon there are versions with and without a chip to communicate aperture information with the...

The Sony E 10-18mm F4 OSS is a constant maximum aperture ultra-wide angle zoom lens for the Sony E-mount announced by Sony on September 12, 2012, and released...

were two linkages and two signals: the automatic aperture lever, aperture signal lever, full aperture signal pin, and automatic exposure lock pin. This...

precision aperture is located behind a larger, view-limiting aperture. The TIM uses a view-limiting aperture that is smaller than the precision aperture that...

camera is operated at high shutter speed or high f number, where the lens' aperture is reduced to improve depth of field and sharpness. The sensor captures...

universes within the pocket universe that is the hub area, itself within the Aperture Science lab. Compared to the Angry Birds series of games, this minigame...

it is compatible with the Magic Keyboard for iPad. Front: 12 MP, ƒ/2.0 aperture, burst mode, timer mode, exposure control, face detection, Smart HDR 4...

and hemiazygos veins. It is the lowest and most posterior of the large apertures.[citation needed] It is located at the level of the inferior border of...

the complicated Schmidt corrector plate with an easy-to-manufacture full-aperture spherical meniscus lens (a meniscus corrector shell) to create a wide-field...

also be a limiting factor in imaging systems, such as radar, synthetic aperture radar (SAR), medical ultrasound and optical coherence tomography. Speckle...

contributed to five books on Diane Arbus's work, including An Aperture Monograph (Aperture, 1972) and Revelations (Random House, 2003). She has also organized...

lens comes in seven different versions, all of which have fixed maximum aperture at all focal lengths, and are L-series lenses. f/4L USM f/4L IS USM f/4L...

loophole or loop hole, and sometimes a balistraria) is a narrow vertical aperture in a fortification through which an archer can launch arrows or a crossbowman...

Yosemite users in the 10.10.3 update on April 8, 2015, replacing iPhoto and Aperture. It was released for tvOS 10 on September 13, 2016. With the introduction...

(eds.): W. Eugene Smith: His Photographs and Notes. An Aperture Monograph. New York: Aperture, 1973. ISBN 0-912334-09-6. Afterword by Lincoln Kirstein...

the aperture, d is the aperture diameter of a conical horn λ is the wavelength, eA is a dimensionless parameter between 0 and 1 called the aperture efficiency...

large aperture (more light passes through), while a large f-number like f/22 indicates a small aperture (little light passes through). Aperture settings...

Remington and 5.56×45mm NATO, the Ranch Rifle with a civilian style rear aperture sight and integral scope ring mounts on the receiver, the Mini-14 GB with...

lets you choose manually the aperture and shutter speed. Av (Aperture priority): The camera lets the user choose the aperture (f/) value and then automatically...

camera aperture; 1.85:1 and 1.66:1 are hard- or soft-matted over this Camera aperture: 0.866 by 0.630 in (22.0 by 16.0 mm) Projector aperture (full 1...

Canon Inc. in 1979. The AV-1 is very similar to the 1976 AE-1 but provides aperture priority autoexposure rather than the AE-1's shutter speed priority AE...

reverse convolution of an image captured with a specially designed coded aperture pattern with a specific complex arrangement of holes through which the...

exposure control whereby the camera would select the correct shutter speed (aperture priority automation). The Nikon F3 series cameras has the most model variations...

not cocked). Both cameras also can manually set their shutter speed and aperture. In addition to manual operation, the RZ67 is able to operate in an automatic...

when the beam passed through a circular aperture. The spot is enlarged because the beam is limited by the aperture to a finite size, and the rings relate...

aberrations and weight are all reduced to the minimum whilst zoom, focus and aperture functions all operate smoothly and predictably. However, because photographic...

include c, f, h, s etc. The digits 0, 4, 6, 8, and 9 also have counters. An aperture is the opening between an open counter and the outside of the letter. Open...

etching and metallization steps. The NRL experimental devices have a 5 mm aperture, though larger devices are possible and are being designed and developed...

with an aperture of f/1.75 and phase-detection autofocus, an 8 MP ultrawide lens with an aperture of f/2.2, and a 2 MP macro lens with an aperture of f/2...

various parameters of exposure. There are three exposure parameters – aperture, time (shutter speed), and sensitivity (ISO), and in different modes, these...

calculate the diffraction pattern created by waves passing through an aperture or around an object, when viewed from relatively close to the object. In...

photographic lenses is the "clickless" or "declicked" aperture ring. Markings on the aperture ring indicate T-stops rather than f-stops as used in still...

generated by one constant function (e.g. a field of illumination or an aperture stop) moving laterally by a known amount with respect to another constant...

Triplet/Tessar type master lens group behind the aperture. Wide-angle lens group in front of the aperture to reduce the image size. Nikkor F 13mm f/5.6 -...

f/5.6–6.3 VR is a full-frame super-telephoto zoom lens with a variable aperture of f/5.6–6.3, manufactured by Nikon for use on Nikon Z-mount mirrorless...

light-gathering power of the objective lens, oil immersion is used and the numerical aperture (NA) of the objective lens must be less than 1.0. Objective lenses with...

actuated apertures and can report the aperture value and focal length for inclusion in Exif data and SteadyShot calculations. Meike 85mm f/1.8 (no aperture ring)...

secondary mirror near the focus of the primary mirror. Most types use full-aperture correctors and are therefore not very large, since the corrector plate...

projection onto the image plane of an ideal pinhole camera, where the camera aperture is described as a point and no lenses are used to focus light. The model...

Thirds system cameras; the first version, distinguished by its maximum aperture of f/4.0–5.8, served as the bundled kit lens for the Panasonic Lumix DMC-GH1...

at the aperture ring to set it. A "pre-set" diaphragm had two aperture rings next to each other: one could be set in advance to the aperture needed for...

70-200 mm f/2.8 VR S is a full-frame telephoto zoom lens with a constant aperture of f/2.8, manufactured by Nikon for use on Nikon Z-mount mirrorless cameras...

The Sony FE 200-600mm F5.6-6.3 G OSS is a premium, variable maximum aperture full-frame telephoto zoom lens for the Sony E-mount, announced by Sony on...

resonance imaging, ultrasound, synthetic aperture radar, seismic imaging, computational photography, coded-aperture imaging, and hyperspectral imaging. It...

include line-of-sight (LOS), over-the-horizon, synthetic aperture radar (SAR), inverse synthetic aperture radar (ISAR) and multistatic. It involves the active...

mask is placed in front of the telescope's objective (or in front of the aperture). The mask consists of three separate grids, positioned in such a way that...

scene that is in focus) for a given aperture value, requiring greater care in focusing (see: "Shutter Speed and Aperture", below). A camera with "panorama"...

release of feces by two muscular anal sphincter complexes. The anus is the aperture at the terminal portion of the anal canal. In humans, the anal canal is...

father of actress Alexa Davalos. State of the Blues (Aperture 1998) American Pictures (Konemann & Aperture 2002) Up Close & Personal (Merrell 2003) Bavister...

The Sony FE 70-200mm F2.8 GM OSS is a premium, constant maximum aperture full-frame (FE) telephoto zoom lens for the Sony E-mount, announced by Sony on...

company formed in 2018 in Tokyo, Japan. The company specializes in synthetic aperture radar satellites, and operates a constellation of these satellites for...

Z 24-70 mm f/2.8 S is a full-frame standard zoom lens with a constant aperture of f/2.8, manufactured by Nikon for use on Nikon Z-mount mirrorless cameras...

world's largest synthetic aperture imaging radar constellation. Its first important innovation was miniaturising synthetic aperture imaging radar satellites...

As the camera ages, the flexible printed circuit connecting the lens aperture control can break, rendering the camera unusable. This is indicated by...

fluctuation of 0.010 in the standard aperture area. When the particles of silver are small, the standard aperture area measures an average of many particles...

lenses are multi-coated. Nearly all have curved aperture blades, rendering smooth backgrounds at wider aperture settings. The internal shutter in the first-generation...

The Sony E 18-200mm F3.5-6.3 OSS is a variable maximum aperture superzoom lens for the Sony E-mount, released by Sony in 2010. The lens was originally...

lens with an f/1.8 aperture, the Poco M4 Pro and Indian version of the Poco X4 Pro 5G have a 64 MP wide-angle lens with an f/1.8 aperture, and the rest of...

The Sony FE 100-400mm F4.5-5.6 GM OSS is a premium, variable maximum aperture full-frame telephoto zoom lens for the Sony E-mount, announced by Sony on...

The Westerbork Synthesis Radio Telescope (WSRT) is an aperture synthesis interferometer built on the site of the former World War II Nazi detention and...

The Sony Zeiss Planar T* FE 50mm F1.4 ZA is a large-aperture, standard full-frame prime lens for the Sony E-mount. It was released by Sony in July 2016...

antenna efficiency, which applies to aperture antennas such as a parabolic reflector or phased array, or antenna/aperture illumination efficiency, which relates...

Nikkor Z 24-120 mm f/4 S is a full-frame standard zoom lens with a constant aperture of f/4, manufactured by Nikon for use on Nikon Z-mount mirrorless cameras...

lets you choose manually the aperture and shutter speed. Av (Aperture priority): The camera lets the user choose the aperture (f/) value and then automatically...

pre-2009 production cameras, and the actual aperture is around f/13, giving the Holga just one aperture. The problem is reported as having been fixed...

full-aperture TTL measurement. Lenses are labelled MC Rokkor. MD - 1977-2001: MD lever added, which allows the reading of the smallest available aperture,...

referred to as the large objective lens and is typically 40–100×. Numerical aperture for microscope lenses typically ranges from 0.10 to 1.25, corresponding...

perspective preserved. To produce a reasonably clear projected image, the aperture is typically smaller than 1/100 the distance from the screen. As the pinhole...

optics, the exit pupil of an optical system is the image of the system's aperture stop created by the optics that follow it in the system. Only rays which...

which has a slightly larger elliptical 100-by-110-metre (330 by 360 ft) aperture. The telescope is located about 1.3 km northeast of Effelsberg, a southeastern...

fixed focus zones and a fixed aperture. The Instax Wide 300 has a 95 mm prime lens with plastic optics and a fixed aperture of ƒ/14. A focal length of 95...

current whose value depends on the amount of light, and three user settings: aperture, shutter speed, and film sensitivity (film speed). In many cameras the...

ability to resolve small details is directly related to the diameter (or aperture) of its objective (the primary lens or mirror that collects and focuses...

was the world's largest single-aperture telescope for 53 years, surpassed in July 2016 by the Five-hundred-meter Aperture Spherical Telescope (FAST) in...

where A {\displaystyle A} is the f-number (reciprocal of the relative aperture); T {\displaystyle T} is the exposure time ("shutter speed") in seconds;...

format capture (all models except the G7), a lens with a wider maximum aperture than standard PowerShot models, remote capture (except the G11), and faster...

24-120mm f/4G IF-ED VR is a 5x standard zoom lens with a fixed maximum aperture of f/4 throughout its entire zoom range. 24-120mm focal length Compact...

putting emphasis on aperture effects. Older designs used a hard aperture, that simply cuts off, while modern designs use a soft aperture, that means the overlap...

Trinitron was Sony's brand name for its line of aperture-grille-based CRTs used in television sets and computer monitors. It was one of the first television...

The iPhone 8 and 8 Plus feature a 12 MP camera with autofocus, f/1.8 aperture and optical image stabilization capable of capturing 4K video at 24, 30...

photographer adjusts the lens aperture and/or shutter speed to achieve the desired exposure. Many photographers choose to control aperture and shutter independently...

(gastropod), a single lid that (in its most complete form) closes the aperture of the shell when the animal is retracted, and thus protects the internal...

The Sony E 18-105mm F4 OSS is a fixed maximum aperture zoom lens for the Sony E-mount, released by Sony on August 27, 2013. The 18-105mm F4.0 G lens is...

modified uniformly redundant array (MURA) is a type of mask used in coded aperture imaging. They were first proposed by Gottesman and Fenimore in 1989. MURAs...

It is a limit gauge with permanently or temporarily fixed measurement aperture(s) (gaps) which is used to quickly verify whether an outside dimension...

(reels), microfiche (flat sheets), micro-opaques (like microcards), and aperture cards. In addition to filming from original paper documents, equipment...

A diopter sight is an aperture sight component used to assist the aiming of ranged weapons, mainly firearms, airguns, and crossbows. Diopters function...

possible adjustments to the aperture or shutter speeds. Because of the inability to adjust focus, the small lens aperture and the low sensitivity of the...

various means of remote sensing such as optical reconnaissance, synthetic-aperture radar (SAR), and electronic intelligence (ELINT) for maritime surveillance...

multirole mission requirement operating as an electronic warfare (EW) aperture utilizing the AESA's multifunction array (MFA). Using electronic protection...

name of Leica lenses with an extreme speed of f/1.2. Because of the large aperture size and its image stabilisation system it is possible to take images with...

The Sony Zeiss Distagon T* FE 35mm F1.4 ZA is a large-aperture, wide-angle full-frame prime lens for the Sony E-mount. It was announced by Sony on March...

has been superseded by the reflecting telescope, which allows larger apertures. A refractor's magnification is calculated by dividing the focal length...

first Lensbaby optic to feature internal apertures. It was followed in 2012 by another optic with internal apertures, the Edge 80 optic. The Edge 80 optic...

of Rollei's twin-lens reflex cameras, by placing the exposure time and aperture controls to the right and to the left side of the lens. Nevertheless, Rollei's...

over shutter speed and aperture. A or Av: Aperture priority AKA "Aperture value" allows the photographer to control the aperture, while the shutter speed...

From the Wrong Side of the Aperture is the second studio album of the Serbian metal band Draconic. The album was recorded in 2008, and released in 2009...

for an extremely large telescope, which was intended to have a single aperture of 100 metres in diameter. Because of the complexity, cost, and risk of...

list of large optical telescopes. For telescopes larger than 3 meters in aperture see List of largest optical reflecting telescopes. This list combines large...

focus. Reversing the lens caused severe spherical aberration so a narrow aperture stop was necessary in front of the lens. On 22 June 1839, Daguerre contracted...

replacing the previous model. For the DG lens, the Nikon version lost an aperture ring so the lens can be equated to Nikon G lenses in this aspect. In addition...

Z 14-30 mm f/4 S is a full-frame wide-angle zoom lens with a constant aperture of f/4, manufactured by Nikon for use on Nikon Z-mount mirrorless cameras...

complexity – and some compromises on image quality, weight, dimensions, aperture, autofocus performance, and cost. For example, all zoom lenses suffer from...

within the sample. Apertures are either a fixed aperture within the column, such as at the condenser lens, or are a movable aperture, which can be inserted...

PhotoBook Awards". Aperture. New York City. November 14, 2025. Retrieved November 20, 2025. "Paris Photo–Aperture PhotoBook Awards". Aperture. New York City...

reducing their saturation). Visible artifacts, usually in the shape of the aperture made by the iris diaphragm, are formed when light follows a pathway through...

as the product of power density of the incident wave and the effective aperture of the receiving antenna under idealized conditions given another antenna...

manual-focus designs with Nikon AI-S type aperture indexing. ZF lenses have AI-S aperture indexing, half-stop aperture ring detents, and no electronic features...

mission objectives were to map the surface of Venus by using synthetic-aperture radar and to measure the planetary gravitational field. The Magellan probe...

and MD tabs on Minolta XD-5 MC tab, just under the engraved f/16 on the aperture ring of the lens, engages with a corresponding tab (colored black) on the...

this antenna is significantly smaller than a wavelength the effective aperture, if 100% efficient, would be approximately: A e = 3 λ 2 8 π {\displaystyle...

Available modes include color weather, synthetic aperture radar (SAR), inverse synthetic aperture radar (ISAR), periscope detection, and navigation....

The Sigma 30mm f/1.4 EX DC HSM is a wide-aperture photographic lens made by the Sigma Corporation, equipped with a Hyper Sonic Motor (abbreviated HSM,...

phenomenon of greatly enhanced transmission of light through a subwavelength aperture in an otherwise opaque metallic film which has been patterned with a regularly...

priority TV/Time value mode, but in aperture priority Av/Aperture value mode this same dial will adjust the lens aperture. In full manual mode, the dial above...

known about Chell but some posit she is the daughter of an employee at Aperture Science Laboratories, the main setting of the games. Chell's face- and...

was the first electronically controlled camera, operating mainly in an aperture priority 'auto' mode. The only other modes of operation are 'flash' (1/30)...

speed of 1⁄8 s and an aperture of f/2.8, when the lens has been extended to achieve a reproduction ratio of 1:3, the aperture should be set to f/2.1...

MP, with an f/2.2 aperture and PDAF (Phase Detection Autofocus), the primary sensor, an 8 MP wide-angle lens with an f/2.2 aperture and a 13mm focal length...

book, At Twelve: Portraits of Young Women (Aperture, 1988). In 1995, she was featured in an issue of Aperture: "On Location with: Henri Cartier-Bresson...

targets the prosumer market, one grade lower than 80-200mm with large aperture. Introduced in August 2006, the current incarnation of the lens (AF-S VR...

focal length and an f/2.0 aperture. Additionally, the Tab S11 Ultra also has an 8 MP ultrawide camera with an f/2.2 aperture. Both models come with 4K@30fps...

joined the faculty. In 1952, Lange co-founded the photography magazine Aperture. In the mid-1950s, Life magazine commissioned Lange and Pirkle Jones to...

such as: incorporating "Auto-Aperture" with the M42 mount, the light weight and compactness with the 'M' series, Aperture Priority overrides with the 'A'...

Auto-ISO (Automatic sensitivity change to keep required Shutter and/or Aperture values) New TTL Flash System Due to its hybrid electronic/mechanical shutter...

had a unique bayonet mount optics, "jumping" diaphragm and 13 aperture blades. The aperture control ring was placed on the back of the lens and switched...

aperture to fill with solder paste. The PWB is then lowered from the stencil. The amount of solder paste which is released from the stencil apertures...

second camera aperture: 70.41 mm × 52.63 mm (2.772 in × 2.072 in) projection aperture: at least 2 mm (0.079 in) less than camera aperture on the vertical...

non-AI lenses. The FE is a manual-focus SLR with manual exposure control or aperture-priority autoexposure, and electromechanical components. As such, the FE...

f/4.5–5.6 VR S is a full-frame super-telephoto zoom lens with a variable aperture of f/4.5–5.6, manufactured by Nikon for use on Nikon Z-mount mirrorless...

in focus. Deep focus is normally achieved by choosing a small aperture. Since the aperture of a camera determines how much light enters through the lens...

available Tiltable pop-up flash, allowing bounce flash. Large maximum aperture, f/1.8-f/4.9 Carl Zeiss Vario-Sonnar T* lens. Focus peaking display available...

observer directly above the area element will be seeing the scene through an aperture of area dA0 and the area element dA will subtend a (solid) angle of dΩ0...

physics and chemistry analysis. The observatory's main dome houses a 40-in aperture (102 cm) doublet lens refracting telescope, the largest refractor ever...

prints camera aperture: 10.26 by 7.49 mm (0.404 by 0.295 in) projector aperture: 9.65 by 7.21 mm (0.380 by 0.284 in) projector aperture (1.85): 9.60 by...

The Sony FE 28-70mm F3.5-5.6 OSS is a full-frame (FE) variable maximum aperture standard zoom lens for Sony E-mount, announced by Sony on October 16, 2013...

1 {\textstyle \cos \theta \approx 1} . Aperture effects are ignored: rays that do not pass through the aperture stop of the system are not considered in...

from 1972 to 1979. The book accompanying the exhibition, Diane Arbus: An Aperture Monograph, edited by Doon Arbus and Marvin Israel and first published in...

aperture of f/2.4. The name has been in use since 1949. The Summarit was initially introduced as Leica's fastest lens in 1949 with a maximum aperture...

The Olympus Stylus 1 is a constant-aperture digital superzoom bridge camera by Olympus Corporation. A slightly updated model called the Olympus Stylus...

pit aperture, and the pit membrane. The pit chamber is the hollow area where the secondary layers of the cell wall are absent. The pit aperture is the...

Summaron is used by Leica to designate camera lenses that have a maximum aperture of f/2.8 or f/3.5 or f/5.6. The Summaron 35 mm f/3.5 was introduced in...

is an American photographer. Bee's book Kids in Love was published by Aperture in 2016. Bee is the daughter of a hairdresser mother and a high-tech worker...

used by Leica to designate their camera lenses with the widest maximum aperture. Lenses with that name have been in production since 1966. So far all Noctilux...

which is then referred to as an aperture tube. The aperture tube is placed in a conducting liquid such that the aperture is completely submerged, and a...

boundaries of the aperture, called Kirchhoff's boundary conditions. This may be related with another assumption that waves on an aperture (or an open area)...

The Sony FE 70-200mm F4.0 G OSS is a full-frame constant maximum aperture, telephoto zoom lens for the Sony E-mount, announced by Sony in 2013. The 70-200mm...

lenses frequently employ compensating diaphragms, which keep the effective aperture constant, even when magnification is changed. Various versions of the 55mm...

Lens |SEL70200GM". "Sony FE 70-200mm F2.8 GM OSS II Full-Frame Constant-Aperture telephoto Zoom G Master Lens| SEL70200GM2". https://electronics.sony...

f/1.8 aperture, phase detection autofocus (PDAF), and optical image stabilization (OIS). The front camera is a 16 MP sensor with f/2.4 aperture.[citation...

exposure value and film speed as input parameters for showing the possible aperture and shutter-speed combinations for correct exposure. The simplest type...

system in which the optical axis of the aperture is not coincident with the mechanical center of the aperture. The principal applications of off-axis...

excitation of the radial fibres of the iris which increases the pupillary aperture is referred to as a mydriasis. More generally, mydriasis also refers to...

subarachnoid space of the spinal cord through two lateral apertures and a single, midline median aperture. The fourth ventricle has a roof at its upper (posterior)...

The Sony E PZ 16-50mm F3.5-5.6 OSS is a variable maximum aperture standard zoom lens for the Sony E-mount, announced by Sony on September 12, 2012, and...

0" main sensor with f/2.0 aperture, 0.8 μm pixel size, 80° field of view 8 MP, 1/4.0" ultra-wide lens with f/2.2 aperture, 1.12 μm pixel size,123° field...

linked telescopes utilizing the techniques of radio interferometry and aperture synthesis. The use of interferometry allows radio astronomy to achieve...

mounting, the lens aperture ring must be turned back and forth to the smallest aperture (largest f-stop number) and then to the largest aperture (smallest f-stop...

system's aperture; diffraction is the ultimate limit to the light focusing ability of any optical system. Aberrations tend to worsen as the aperture diameter...

world's "Smart Communities" and highlighted the smart grid that powers the Aperture Center in Mesa del Sol. The long-term development plan of the Land Office...

the rewind knob. The XG-M supported both aperture priority autoexposure and full manual mode. For aperture priority shooting, the shutter speed dial...

able to electronically control the aperture and autofocus of Sony SSM/SAM A-mount lenses, and control the aperture of the other Sony/Minolta A-mount lenses...

plate. Concentrating collectors have a much larger aperture than the absorber area. The aperture is typically in the form of a mirror that is focussed...

16-50 mm f/3.5–6.3 VR is a DX-format (APS-C) zoom lens with a variable aperture of f/3.5–6.3, manufactured by Nikon for use on Nikon Z-mount mirrorless...

Adam Goldworm (born April 1, 1978) is a literary and talent manager at Aperture Entertainment, a boutique management/production company that he founded...

transparent oil of high refractive index, thereby increasing the numerical aperture of the objective lens. Without oil, light waves reflect off the slide specimen...

also the last Galaxy S series line to feature an iris scanner, a variable-aperture lens, and a notification light. The Galaxy S9 and S9+ have nearly identical...

SR-T 101 SLR camera is one of the first with TTL (through-the-lens) full aperture light metering. The first is Topcon RE Super from 1963. 1972: Minolta signs...

The VLT Interferometer is expected to produce its first images using aperture synthesis soon,[needs update] followed by other interferometers such as...

The Sony FE 70–200 mm F4 Makro G OSS II is a full-frame constant maximum aperture, telephoto zoom lens for the Sony E-mount, released by Sony in July 2023...

Summicron is used by Leica to designate camera lenses that have a maximum aperture of f/2 after 1953 and to present day. The name Summicron is derived from...

feature an HSM focus drive. Using the problematic lens with its largest aperture is sometimes possible. Another cause of Err99 messages involve EF-S 18–55...

an ƒ/2.2 aperture, a 127° field of view, and a 1/3.4" image sensor size. The 10.8 MP Dual PD telephoto camera, which has an ƒ/3.1 aperture, a 23° field...

center-weighted meter. This camera allowed one to focus the lens at maximum aperture with a bright viewfinder image. After focusing, a switch on the side of...

parts, as seen on the drawing: the whistle bell (1), the steam orifice or aperture (2), and the valve (9). When the lever (10) is actuated (usually via a...

discovered from the 200-inch (508 cm) aperture Hale telescope in California. (there is also a 60-inch aperture Hale telescope) S.S. Sheppard (2019), Moons...

Leica and Panasonic Lumix to designate camera lenses that have a maximum aperture brighter than f/2, typically at f/1.4, but dimmer than f/1.25. The lens...

mirror aspherised to cancel coma resulting from the altered aperture stop position (the aperture stop effectively coinciding with the corrector). While astigmatism...

reconnaissance capabilities reportedly include electro-optical imaging, synthetic-aperture radar, and other sensors. Some have suggested the drone will be weaponized...

Biogon removed a meniscus element and simplified the group ahead of the aperture. The first regular production Biogon lenses were produced from 1954 as...

optical microscopy that consists in the synthesis of a wider numerical aperture from a set of full-field images acquired at various coherent illumination...

with 2x III). Any other lens/teleconverter combinations resulting in an aperture of f/8 will only function with the center point. The 80D is the first non-professional...

the structure. However, it is rugged and roller bearings are used in the aperture mechanism. Inevitably it requires a specialist for its repair; 43 parts...

maximum aperture depends on the lens aperture for most lenses. However, for larger-aperture lenses, since the adapter controls the aperture, the effective...

method which introduces a global constraint of smoothness to solve the aperture problem (see Optical Flow for further description). The Horn-Schunck algorithm...

atrioventricular orifice (right atrioventricular opening) is the large oval aperture of communication between the right atrium and ventricle in the heart. Situated...

the square of the distance, but the amount of light admitted through an aperture decreases with the square of the f-number.[self-published source?] Accordingly...

AG-1 "peanut" bulbs, a feature lacking in the 50. With non-adjustable aperture, focus, and shutter speed (1⁄90 sec.), it continued in the tradition of...

subject as she attempts to gain control of a device that will restore the Aperture Science test chambers to full condition. The player traverses the puzzle...

Nikkor Z 24-70 mm f/4 S is a full-frame standard zoom lens with a constant aperture of f/4, manufactured by Nikon for use on Nikon Z-mount mirrorless cameras...

object to be imaged crosses the optical axis) and touches an edge of the aperture stop of the system. This ray is useful, because it crosses the optical...

unlocking of the bolt during rapid fire. An advanced design, for the era, of aperture rear sight and a long sight radius were incorporated to maximize accuracy...

has a branchial or incurrent aperture or mouth. The atrial siphon has atrial or excurrent aperture or cloaca. Each aperture is surrounded by four lobes...

refractive index and radius of the hemispherical lens, and the maximum aperture was approximately f/50; it was not corrected for chromatic aberration and...

The Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS is a constant maximum aperture zoom lens for the Sony E-mount, announced by Sony on August 27, 2013. The...

(at 30, 25 or 60 fps), or 720p HD video (at 30 fps). The camera has an aperture of ƒ/1.8, autofocus, optical image stabilization, and a quad-LED True Tone...

Minolta (later Konica-Minolta) and Sony. The relatively large maximum aperture (f/1.7) allows the photographer to take shots indoors even when operating...

the right side or outer side of the aperture is known as the outer lip (labrum). The left side of the aperture is known as the inner lip or columellar...

one for the aperture. The circular button holds the focus and the switch below allows a change between autofocus and manual focus. An aperture latching switch...

See reviews. Tethered shooting with Nikon Camera Control Pro 2, Apple Aperture 3, Adobe Lightroom 3.0 and above or other partly free products including...

focusing. Despite its price and large maximum aperture, the 1.0L was not a particularly sharp lens at any aperture, and the two cheaper 50mm options offered...

maximum aperture, and also lacks a macro feature. Canon EF 70–200mm lens has both image-stabilized and non-IS versions with maximum apertures of f/2.8...

aperture while the photographer presets the aperture to the desired value; when the shutter is released, the lens stops down to the preset aperture during...

rifles. The MAS-36 had a relatively short barrel and was fitted with large aperture (rear) and post (front) sights designed for typical combat ranges. Typical...

an objective aperture to only collect scattered electrons that pass through. In contrast, STEM dark-field imaging does not use an aperture to differentiate...

on DX format cameras, the resulting angle of view along with its large aperture also make it a lens suitable for portraiture. Being an F-mount lens, it...

photographic lens (as opposed to a zoom lens), typically with a maximum aperture from f/2.8 to f/1.2. The term can also mean the primary lens in a combination...

synthetic-aperture radar (SAR) satellite that was launched on July 1, 2024. It carries PALSAR-3 (Phased Array type L-band Synthetic Aperture Radar-3),...

available in Contax/Kiev mount. The -M version of the lens has click stops on aperture ring and the -NB version uses the external bayonet – it was introduced...

{\displaystyle E_{\mathrm {inc} }(x,y)} is incident on the aperture, the field produced by this aperture distribution is given by the surface integral Ψ ( r...

The ETX ("Everybody's Telescope") is a line of smaller aperture telescopes (60mm to 125mm) made by Meade Instruments. The ETX started out as a 90 mm (3-1/2")...

micro-computer calculates stepless aperture (f/stop) and stepless shutter speed using pre-programmed values. In 'A' (Aperture Priority AE) mode, the micro-computer...

full aperture. For this purpose the RE-lenses have an aperture simulator that relays the preset aperture to the exposure meter at full aperture, retaining...

Earth-observing satellites, such as RADARSAT, have employed synthetic aperture radar (SAR) to obtain terrain and land-cover information about the Earth...

altering the effective numerical aperture of the microscope. The role of the condenser diaphragm is analogous to the aperture in photography although the condenser...

body is attached to only 2 lens/teleconverter combination with a maximum aperture of f/8. The EF 100–400mm f/4.5–5.6L IS II lens, with Extender EF 1.4x III...

is centered on a circular aperture of radius r at distance z from the beam waist, the power P that passes through the aperture is P ( r , z ) = P 0 [ 1...

The Sigma 30mm F1.4 DC DN Contemporary lens is a fixed maximum aperture standard prime lens for Sony E, Micro Four-Thirds, Canon EF-M, Canon RF-S and Leica...

Olympus Corporation, in Japan between 1975 and 1988. The Olympus OM-2 is an aperture-priority automatic-exposure camera (with full manual operation selected...

(ES) (automatic aperture-priority exposure) in 1971, ES II in 1973 and K2 (vertical metal shutter, bayonet lens mount, automatic aperture-priority exposure)...

superintelligent computer system responsible for testing and maintenance in the Aperture Science Computer-Aided Enrichment Center in all titles. After betraying...

by a factor of either 1.4x or 2x, at the cost of decreasing the lens' aperture by 1 or 2 stops respectively. For example, using a 1.4x or 2x extender...

Ofeq-13, also known as Ofek-13, is an Israeli synthetic-aperture radar observation satellite. It is part of the Ofeq intelligence satellite family, designed...

when Aperture Science is still a fledgling company, Mel, a German Olympian who has been recruited as a test subject, arrives by tram at the Aperture Science...

county's government is based in the town of Pinghu. The Five Hundred Meter Aperture Spherical Telescope (FAST) is located in the southwestern part of Pingtan...

and are known for their very shallow depth of field when using a wide aperture and their unique high level of clarity, contrast and control. Image sensor...

without autofocus capability. It is also the sole such lens having an aperture ring. Apodization is a process in spatial signal processing which can enhance...

Synthetic aperture sonar – Form of sonar using post-processing of sonar dataPages displaying short descriptions of redirect targets Synthetic-aperture magnetometry...

others) by the use of a mechanical adapter without electronic control of the aperture or autofocus. In contrast, parfocal adaptation of EF lenses to non-EF camera...

especially to searching for comets: commonly of short focal length and large aperture, in order to secure the greatest brilliancy of light. This style of telescope...

The Hobby–Eberly Telescope (HET) is a 10-meter-aperture (33 ft) telescope located at the McDonald Observatory in Davis Mountains, Texas. The Hobby–Eberly...

often included as a kit lens with Canon EOS film cameras. The maximum aperture is f/4 at 28mm, reducing to f/5.6 at 90mm. When set to 90mm, this will...

situated ventral to the pons. It contains the basilar artery. Each lateral aperture opens into the pontine cistern just posterior to the cranial nerve VIII...

top deck, allows selection of focus distance in manual focus mode, aperture in aperture-priority autoexposure, or program shift. The primary control change...

reconnaissance missions, Anka has evolved into a modular platform with synthetic-aperture radar, precision-guided munitions and satellite communication. The aircraft...

lens uses manual focus only. As all mirror lenses, it cannot change the aperture. Only available mount is the T-Mount and can be connected to several other...

subarachnoid cisterns via three small foramina: the central median aperture and the two lateral apertures. According to the traditional understanding of cerebrospinal...

Adobe Illustrator Artwork filename extension Automatic Maximum-Aperture Indexing, the aperture coupling on Nikon camera lenses Artificial intelligence (disambiguation)...

this design. The term Dobsonian is currently used for a range of large-aperture Newtonian reflectors that use some of the basic Dobsonian design characteristics...

meniscus elements in four groups, deployed symmetrically around the central aperture, it is considered a double Gauss lens variant. According to Richter, the...

The Sony FE PZ 28-135mm F4 G OSS is a full-frame constant maximum aperture advanced standard zoom lens for the Sony E-mount, announced by Sony on September...

that is damped, and a distance window with infrared index. The maximum aperture of f/1.4 gives this lens the ability to create shallow depth of field and...

Sony Zeiss Vario-Tessar T* FE 16-35mm F4 ZA OSS is a constant maximum aperture wide-angle full-frame (FE) zoom lens for the Sony E-mount, announced by...

K-mount, announced by Pentax on December 9, 2003. It has a constant maximum aperture of f/4. www.dpreview.com Media related to SMC Pentax-DA 16-45mm F4 ED AL...

E PZ 18-110mm F4 G OSS in photography is an advanced constant maximum aperture zoom lens for the Sony E-mount, announced by Sony on September 9, 2016...

distance scale and, being a G lens, the AF-S 18-105 VR does not feature an aperture ring. Digital Photography Review praised its high performance saying "The...

Emerson College and Gustavus Adolphus College, where he teaches. Black Aperture, his first book, which is primarily concerned with his brother's suicide...

Doppler beam sharpened sector and patch mapping, medium range synthetic aperture radar, fixed and moving ground target track and sea surface search. In...

Teachout has suggested that he probably used f/16, that being the lowest aperture in general use. The philosophy has been explained thus: Simplicity in the...

Lee–Enfield, either in standard issue form or with modified "fine-adjustment" aperture rearsights designated Pattern 1914 Mk I W (F) and Pattern 1914 Mk I* W...

about 24.4 centimetres (9.59 English inches). This lens had the largest aperture of its day for an achromatic lens. The term for telescopes persisted even...

Weapons Plant. Millerton, NY: Aperture, 1984. Summer Nights. New York: Aperture, 1985. Los Angeles Spring. New York: Aperture, 1986. Perfect Times, Perfect...

(DSHA). Other technologies such as the T/R modules, the C-band synthetic-aperture radar antenna, the advanced data management and transmission subsystems...

three groups. This lens is the fastest Jupiter lens, having a maximum aperture of f/1.5. The focal length of this lens is 50mm, sometimes also expressed...

The Sony FE 24-240mm F3.5-6.3 OSS is a variable maximum aperture full-frame (FE) superzoom lens for the Sony E-mount, announced by Sony on March 4, 2015...

antenna system, a network of spatially separated antenna nodes Distributed Aperture System, a type of infrared search and track sensors Double acting ship...

made by Sigma Corporation. It is notable for being the first lens with an aperture of f/2.8 and a focal length of 500mm. This combination allows very distant...

principle of resistive pulse sensing, which monitors current flow through an aperture, combined with the use of tunable nanopore technology, allowing the passage...

that would be captured by a camera having a finite (i.e., non-pinhole) aperture. Such a view has a finite depth of field. Shearing or warping the light...

Some X100 cameras have reportedly suffered from 'sticky aperture disease' where the aperture blades lock up, leading to overexposure. Fujifilm has acknowledged...

the same projected area. A solid angle of one steradian subtends a cone aperture of approximately 1.144 radians or 65.54 degrees. In the SI, solid angle...

an aperture range of f/2.8–4.0 (as opposed to f/3.5–5.6). Unlike newer L-series lenses, it is not a constant aperture lens; the maximum aperture of this...

cladding that raises the total outer diameter to 125 microns. The numerical aperture of a multimode optical fiber is a function of the indices of refraction...

reflector (40 cm (16 in) aperture) Foucault-Eichens reflector (20 cm (7.9 in) aperture) Martin-Eichens reflector (40 cm (16 in) aperture) Several small refractors...

gathers light via an 80 mm aperture into a reflector with the secondary mirror obscuring the central 42 mm of the aperture. For zeroing the sight the...

control of the aperture. Some manufacturers offer lenses and adapters with full electronic functionality (autofocus, automatic aperture control, Exif metadata...

lenses with a maximum aperture of f/5.6; Center cross-type focus point supports autofocusing with lenses with a maximum aperture of f/8; DX-sized sensor...

Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) is the major instrument on the Soil Moisture and Ocean Salinity satellite (SMOS). MIRAS employs...

the light passing through a relatively large entrance aperture through a smaller exit aperture. The collection of incoming rays is maximized by allowing...

DMC-FZ300 (also known as the Panasonic Lumix DMC-FZ330) is a constant-aperture DSLR-styled digital bridge camera announced by Panasonic on July 16, 2015...

becomes a well-conditioned problem. Similarly, in a lens based coded aperture, the aperture can be modified by inserting a broadband mask. Thus, out of focus...

is perhaps the full aperture metering facility, allowing the exposure to be set accurately without stopping down. Full aperture TTL metering was commercially...

The Sony E 18-55mm F3.5-5.6 OSS is a variable maximum aperture standard zoom lens for the Sony E-mount, announced by Sony on May 11, 2010. The lens is...

(50mm) one, as it is possible to set the body mounted aperture wider than the maximum aperture of the lens (i.e. f/2 instead of f/4 or f/5.6). A similar...

In telecommunications, aperture-to-medium coupling loss is the difference between the theoretical antenna gain of a very large antenna, such as the antennas...

announced by Fujifilm on January 6, 2014. As of 2015, it is one of the widest-aperture native mirrorless lenses. In September 2014, Fujifilm announced a variant...

"Chapter 14 - Emerging techniques of polarimetric interferometric synthetic aperture radar for scattering-based characterization". Radar Remote Sensing. Earth...

extremely high sensitivity and angular resolution, using a technique called aperture synthesis. In addition, each of the two parts of the SKA will link to other...

benefit" (sic), adding that while the lens was resistant to flare, changing aperture also shifted focus, making macro shooting difficult. "Tamron AF 18-270mm...

exposure control and manual override. Its viewfinder readouts for selected aperture/shutter speed settings are unique for a compact camera, later reiterated...

The Sony FE 24-70mm F2.8 GM is a premium constant maximum aperture full-frame (FE) zoom lens for the Sony E-mount, announced by Sony on February 3, 2016...

by means of aperture masks used in the projector's gate. While this ratio did catch on internationally, the camera and projector aperture size differed...

with a maximum aperture of f/1.4. The 3.8× maximum zoom of the lens is relatively limited, however, and zooming limits the aperture. For example, at...

probation. The Last Day of Summer (1991, Aperture, NY), ISBN 0-89381-538-1 Radiant Identities (1994, Aperture, NY) Evolution of Grace (1994, Gakken, Tokyo)...

used in the early days of photography. Other mechanisms than the dilating aperture and the sliding curtains have been used; anything which exposes the film...

of the SWFC's design is the trapezoid aperture at the peak. The original design specified a circular aperture, 46 m (151 ft) in diameter, to reduce the...

world, or largest in a region. Despite typical designs having smaller apertures than reflectors, great refractors offered a number of advantages and were...

one being the Noct-Nikkor 58mm f/1.2 for F-mount), due to its very large aperture of f/0.95. The word "Noct" is engraved in yellow into the lens body. On...

from the radiation field is proportional to a factor called the antenna aperture or antenna capture area, which increases with the square of wavelength...

largest single mount optical telescopes sorted by total objective diameter (aperture), including segmented and multi-mirror configurations. It is a historical...

a narrow bandwidth. Even greater directionality can be obtained using aperture antennas such as the parabolic reflector or horn antenna. Since high directivity...

a ƒ/2.2 aperture, a 5-element lens, phase-detection autofocus and an LED flash. The front camera has a resolution of 5 MP, a ƒ/2.0 aperture and a 5-element...

photographing with an open diaphragm. Its focal length is 37.5mm and its maximum aperture is f/2.8. There are several versions of the lens (Mir-1, Mir-1V, Mir-A...

black finish. It showcases recessed front lens element, focusing ring, and aperture ring. On the side of the lens is a programmable focus-hold button, Autofocus-Manual...

blade aperture and hill-valley knurled focus ring 50mm f/2.8 Edixa-Reflex with 10 blade aperture (rare) 50mm f/2.8 Edixa-Lauder with 15 blade aperture, aluminum...

lens mount. These spanned two generations (FD and New FD) and varied by aperture and macro ability. These photographic lenses were: 200 mm f/2.8 S.S.C.:...

diffraction. In practice it is considered to be 2× the aperture in millimetres or 50× the aperture in inches; so, a 60 mm diameter telescope has a maximum...

triplet with a fixed aperture; the original German patent application describes a lens with 120° angle of coverage and a f/8 maximum aperture, while the US patent...

March 2022, Underknown acquired the speculative science YouTube channel Aperture. In August 2024, Underknown bought the nature channel Animalogic from Blue...

Synthetic Aperture Radars (SAR), a technology that he pioneered in ISRO, for drones and satellites. Sisir Radar will make synthetic aperture radars (SAR)...

size of the blur spot. Such a blur spot has the same shape as the lens aperture, but for simplicity, is usually treated as if it were circular. In practice...

electro-optical/infrared sensors, communications and electronic intelligence, synthetic-aperture radar/ground-moving target indication, electronic warfare, and hyperspectral...

exposure, noise trigger, light painting, color paint and manual control of aperture, shutter speed, flash strength and lens) Polaroid I-2 (2023) – one 98 mm...

electro-mechanically controlled aluminium-bladed focal plane shutter, the aperture priority auto-exposure mode, the match-needle exposure control system and...

f/2.2 aperture and a 114° field of view. Additionally, the Phone (2a) features a 32 MP Sony IMX615 front-facing camera with an f/2.2 aperture, while...

lenses, vignetting may occur all along the zoom range, depending on the aperture and the focal length. However, it may not always be visible, except at...

reproduction ratio, aperture, focus distance and depth of field information One customizable control ring at the back (aperture, ISO and exposure compensation...

hyperfocal distance; f is the focal length of the lens; N is f-number (f/D for aperture diameter D); and c is the circle of confusion limit. For any practical...

Pentax ME, originally marked the Asahi Pentax ME, was a 1977-introduced, aperture priority automatic camera with an electronic focal plane shutter from 8 s...

The Sony FE 16-35mm F2.8 GM II is a premium constant maximum aperture wide-angle full-frame (FE) zoom lens for the Sony E-mount, announced by Sony on August...

(later carbon-14, one-side only) fitted laterally on each side of the aperture was issued. This element could be clipped by the user on the standard diopter...

ASPH Power OIS Overview". "Panasonic Introduces a Redesigned F2.8 Large Aperture 24-70mm Wide Zoom MFT Lens". 14 December 2022. Wikimedia Commons has media...

Revisited is a photography book by Mary Ellen Mark that was published by Aperture in October 2015. It includes photos taken by Mark over 30 years of her...

lenses. Its lack of electronic aperture control limits the F4's functionality with G type lenses, which do not have an aperture ring. With these lenses, exposure...

telescopes are usually less expensive for any given objective diameter (or aperture) than comparable quality telescopes of other types. Since there is only...

announced by Fujifilm on April 16, 2015. It has an unusually wide maximum aperture given its focal length, and is weather-sealed. "Fujifilm XF 16mm F1.4 R...

control the exposure time, and another to control the aperture. Because the shutter and aperture are held wide open while the photograph is being composed...

8 aperture, an 8 MP ultrawide-angle camera with f/2.2 aperture, a 2 MP macro camera with f/2.4 aperture, and a 2 MP depth camera with f/2.4 aperture. There...

not work as well as AI-S lenses allowed (this is due to their non-linear aperture stop-down mechanisms). Nikon's most recent 35 mm film SLR lenses are not...

Mauna Kea in the U.S. state of Hawaii. Both telescopes have 10 m (33 ft) aperture primary mirrors, and, when completed in 1993 (Keck I) and 1996 (Keck II)...

(f/2.8) compared to other standard prime lenses which usually have a max aperture of f/1.4 - f/1.8. But its image quality, its small size and low weight...

polysilicon TFT LCD with 130,000 pixels. The camera uses a through-the-lens full-aperture exposure metering system. It can simultaneously record NEF and JPEG data...

collaborated on books and exhibitions with the Magnum Photos agency and Aperture. Cuomo is the recipient of numerous awards, including the International...

solid immersion lens (SIL) has higher magnification and higher numerical aperture than common lenses by filling the object space with a high-refractive-index...

rather than an SLR, and features a shutter speed dial on the body and an aperture ring on each lens, also similar to pre-digital 35mm film rangefinders and...

be seen with the naked eye. It can be viewed with a telescope having an aperture of at least 4 in (10 cm). The estimated distance to Kepler-22 is 644 light-years...

Nikkor AF-S and G designated lenses (the F4 could not use G lenses in aperture-priority or full manual modes). Support for the Vibration Reduction (VR)...

SLAR can be fitted with a standard antenna (real aperture radar) or an antenna using synthetic aperture. The platform of the radar moves in direction of...

common form": two reflectors, small objects should be placed close to the aperture to be viewed at the other end "The compound, or telescopic Kaleidoscope":...

video at 25, 30 or 60 fps, or 720p HD video at 30 fps. The camera has an aperture of ƒ/1.8, autofocus, optical image stabilization, and a quad-LED True Tone...

biography, A Wild Life, was written by Melissa Harris and published by Aperture. Nichols was born in 1952 in Muscle Shoals, Alabama. After studying at...

Mount, Concave Front Element, Min Aperture f/16 Black Bayonet Hood Mount, Concave Front Element, SSC Coating, Min Aperture f/16 Chrome Bayonet Hood Mount...

which used a direct mechanism linking the shutter release button to the aperture mechanism, significantly increasing the effort required to release the...

catadioptric Cassegrain telescope that uses a spherical primary mirror and a sub-aperture secondary corrector group composed of a small lens and a Mangin mirror...

resembles that of the genus Streptostele, but is characterized by three-fold apertural dentition and just under six whorls. This taxon may represent a new genus...

numerical aperture: r A i r y = 1.22 λ 2 N A   , {\displaystyle r_{Airy}=1.22{\frac {\lambda }{2\,\mathrm {NA} }}\ ,} where the numerical aperture is defined...

35mm film cartridges. The camera operates in aperture-priority autoexposure, with four selectable aperture settings of f/3.5, 5.6, 8, or 16. Exposure compensation...

on September 2, 2015. It has a stepper-motor autofocus and electronic aperture control. The focus ring is not mechanically connected to the lens elements...

Kalyazin Radio Astronomy Observatory is located in Kalyazin. RT-70, a larger aperture Russian design. Grahn, Sven. "The Soviet/Russian Deep Space Network". Retrieved...

4 and featured a rear receiver aperture battle sight calibrated for 300 yd (270 m) with an additional ladder aperture sight that could be flipped up and...

single camera on the front. The main camera is a 50 MP sensor with an f/1.8 aperture, a 24 mm focal length, a 1/1.56-inch sensor size, a 1.0 μm pixel size,...

the start of DSLR cinematography. The effect can be obtained by a larger aperture, a close viewpoint, a larger image sensor or a longer focal length lens...

original on 2012-11-07. Retrieved 2012-12-24. White, Minor (1991). Aperture. Aperture Foundation. ISBN 9780893814618. Retrieved May 10, 2013. Elgort, Ansel...

the limit imposed by atmospheric distortion, such as speckle imaging, aperture synthesis, and lucky imaging, or by moving outside the atmosphere with...

accompanied by a comprehensive monograph published in conjunction with Aperture in 2017. In 2025, the film Peter Hujar's Day was released, directed by...

2022. In 2023, Jadagu announced her debut album, Aperture, alongside the single "What You Did." Aperture was written between her tours with Faye Webster...

land and at sea at the same time, with synthetic aperture radar (SAR) and inverse synthetic aperture radar (ISAR) for picture-like radar imagery of both...

VCSEL structure everywhere except the aperture of the VCSEL, destroying the lattice structure around the aperture, thus inhibiting the current. In the...