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Topics referred to by the same term
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
Aperture_value
Hole or opening through which light travels
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
Aperture
Setting on a photo camera that enables choosing a specific aperture value
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
Aperture_priority
relative aperture. Many authors now use N {\displaystyle N} and t {\displaystyle t} for relative aperture and exposure time. Recommendations for the value of
APEX_system
Measure of illuminance for a combination of a camera's shutter speed and f-number
halving the exposure time or halving the aperture area, or a combination of such changes. Greater exposure values are appropriate for photography in more
Exposure_value
Measure of lens speed
one-half. The one-stop unit is also known as the EV (exposure value) unit. On a camera, the aperture setting is traditionally adjusted in discrete steps, known
F-number
Topics referred to by the same term
astronomy, abbreviated A V Aperture value mode, setting on photo cameras that allows to choose a specific aperture value Av. or Ave, an abbreviation
AV
Lens mount
Ridge, but the Lens Speed Indexing Post is ignored and the maximum aperture value is set electronically by the operator instead. AI-designated lenses
Nikon_F-mount
Amount of light captured by a camera
exposure meter. Aperture priority (commonly abbreviated as A, or Av for "aperture value") mode gives the photographer manual control of the aperture, whilst the
Exposure_(photography)
Screw thread mounting standard for attaching lenses to 35 mm cameras
aperture value to be pre-selected without actually closing the aperture, with a separate ring to close down the aperture quickly to the chosen value.
M42_lens_mount
Characteristic of an optical system
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
Numerical_aperture
Photography genre
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"
Landscape_photography
35 mm SLR camera
offered mostly aperture-priority cameras and some preferred it. The AV in the name referred to the type of autoexposure; Av (Aperture Value) is a common
Canon_AV-1
1992 35mm single-lens reflex camera
shutter 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
Canon_EOS_5
Surface on an antenna in electromagnetics
the aperture of an antenna is defined as "A surface, near or on an antenna, on which it is convenient to make assumptions regarding the field values for
Aperture_(antenna)
over shutter speed and aperture. A or Av: Aperture priority AKA "Aperture value" allows the photographer to control the aperture, while the shutter speed
Mode_dial
Metadata standard in digital images
information that varies with each image such as orientation (rotation), aperture, shutter speed, focal length, metering mode, and ISO speed information
Exif
Method of estimating exposure in photography
obtained on a sunny day using the exposure value (EV) system. The basic rule is, "On a sunny day set aperture to f/16 and shutter speed to the [reciprocal
Sunny_16_rule
Light-measuring instrument
analog calculator which accepts exposure value and film speed as input parameters for showing the possible aperture and shutter-speed combinations for correct
Selenium_meter
User selectable camera configurations
mode, everything is automatic. A or Av: Aperture priority or Aperture value enables manual control of the aperture, and shutter speed is calculated by the
Digital_camera_modes
Camera model
parallax only a parallax arrow. The CdS exposure meter's aperture value proposal for the automatic aperture was visible through the finder, at the right side
Minolta_AL-F
Form of radar used to create images of landscapes
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
Synthetic-aperture_radar
Diffraction pattern in optics
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
Airy_disk
1982 35mm single-lens reflex camera
speed for a given user-selected aperture value. In 'M' (Manual Exposure Control) mode, the user selects both aperture and shutter speed, and the metering
Nikon_FG
Setting on cameras that allows the user to choose a specific shutter speed
camera adjusts the aperture to ensure correct exposure. This is different from manual mode, where the user must decide both values, aperture priority where
Shutter_priority
1978 35mm single-lens reflex camera
hold down at the same aperture value until the picture is taken. Doing so, it is not possible to know the real value of the aperture, although a correct
Nikon_FE
Topics referred to by the same term
unbounded, transcendence measure. T-number (photography), a transmission aperture value in photography This disambiguation page lists articles associated with
T-number
2004 APS-C digital single-lens reflex camera
Auto-ISO (Automatic sensitivity change to keep required Shutter and/or Aperture values) New TTL Flash System Due to its hybrid electronic/mechanical shutter
Nikon_D70
2023 full-frame mirrorless camera
manual shooting mode Added manual input of aperture values when using non-CPU lenses Added focus distance value on indicator during manual focus Various
Nikon_Zf
2009 APS-C digital single-lens reflex camera
points, focus confirmation light. Exposure information: Shutter speed, aperture value, ISO speed (always displayed), AE lock, exposure level/compensation
Canon_EOS_500D
additional minimum diaphragm (MD) tab to signal the minimum aperture opening size (largest f-stop value) of the lens to the body for shutter-priority autoexposure
List of Minolta SR-mount lenses
List_of_Minolta_SR-mount_lenses
Distance between the nearest and the furthest objects that are in focus in an image
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
Depth_of_field
1990s 35 mm autofocus camera
currently-selected aperture. If that shutter speed is not available the photo is taken with the closest available shutter speed, but the aperture value is not varied
Konica_Hexar
camcorders, which report constant aperture value when the ND filter is being engaged, the HMC40 reports virtual aperture values. That is, F2.8 means "f/2.8
List_of_Panasonic_camcorders
Camera model
for manual focusing and for changing the exposure (shutter speed and aperture values) for a full manual shot. The lens is manufactured by the German company
Panasonic_Lumix_DMC-FZ7
History aspect of camera brand
Minolta patent, but utilised in the Olympus OM-2 in 1975. The selected aperture value and shutter speed are shown in the viewfinder. It had a large range
Pentax_cameras
2009 APS-C digital single-lens reflex camera
HDTV (cropped)) TAv exposure mode: Time/Aperture Value: photographer sets his own desired shutter speed/aperture, while the camera adjusts the ISO accordingly
Pentax_K-7
1973–1978 single-lens reflex camera
aperture. When used in automatic mode, it's possible to lock the current aperture value, then recompose the picture, if desired, by pressing the small silver
Canon_EF_camera
Standard lens mount on the Canon EOS family
aberration, compared to conventional lenses of similar focal length and aperture value. They are more expensive to make. Only the EF 400 mm f/4 DO IS USM,
Canon_EF_lens_mount
Photographic technique
mode, which will have a corresponding effect on the shutter speed, aperture value, or both. This form of ISO bracketing could potentially affect not only
Bracketing
Optical device used with a camera to create images
"improved" pinhole "lenses". As shown, a pinhole "lens" is simply a small aperture that blocks most rays of light, ideally selecting one ray to the object
Camera_lens
Standard lens mount on the Canon
Finder FN in aperture preferred AE mode. The New FD lenses' aperture rings were placed closer to the rear of the lens so that the aperture value is visible
Canon_FD_lens_mount
2019 APS-C mirrorless interchangeable-lens camera
[RETOUCH MENU]. Certain aperture values would not be selected when control rings for the following lenses were rotated to stop aperture down in movie mode:
Nikon_Z50
Optical device for recording images
always possible. Like aperture settings, exposure times increment in powers of two. The two settings determine the exposure value (EV), a measure of how
Camera
Lenses designed for cinematography
perform smooth, silent aperture transitions during a take without causing audible clicks in the audio recording. Aperture values on cine lenses are marked
Cine_lens
Device in optics that reduces light intensity
entering the lens. Doing so allows the photographer to select combinations of aperture, exposure time and sensor sensitivity that would otherwise produce overexposed
Neutral-density_filter
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)
List of third-party Sony E-mount lenses
List_of_third-party_Sony_E-mount_lenses
Measure of antenna performance
So the value of equivalent rent bandwidth increases with the narrowing of antenna aperture. Therefore, when selecting the earth station aperture, it is
Antenna gain-to-noise-temperature
Antenna_gain-to-noise-temperature
Rate of gas exchange and transpiration in plants
in stomatal conductance is driven primarily by variation in the width (aperture) of the stomatal pores and the number of stomata per unit leaf area (stomatal
Stomatal_conductance
Aesthetic quality of blur in the out-of-focus parts of an image
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
Bokeh
Function on a camera to use the screen as a viewfinder
(AE) / Manual ISO modes: P (Program), TV (Time Value: shutter speed priority), and Av (Aperture Value). If Auto ISO is used, Autogain (Auto-EV0) framing/focus
Live_preview
Photographic lens
integrated in their imaging sensor can provide AF with even lower aperture values. None of the current camera and lens manufacturers offer an AF Mirror
Minolta_AF_Reflex_500mm_f/8
Photographic lens
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
Nocticron
Length of time when the film or digital sensor inside a camera is exposed to light
aperture or f-stop, and the scene's luminance together determine the amount of light that reaches the film or sensor (the exposure). Exposure value (EV)
Shutter_speed
the calculated value. For measuring the real part of the nonlinear refractive index, the z-scan setup is used in its closed-aperture form. In this form
Z-scan_technique
abbreviations not specific to brands Abbr Description A Av Aperture priority or Aperture value. Automatic exposure mode where the photographer sets the
List of abbreviations in photography
List_of_abbreviations_in_photography
Lens flaw
restricted, the soft focus effect becomes less pronounced. Effective aperture values (for computing exposure) range from f/5.8 to f/11.5. Some examples
Soft_focus
Optical system with resolution performance at the instrument's theoretical limit
coefficient slightly different from the 1.22 value familiar in imaging. However, the scaling with wavelength and aperture is exactly the same. The beam quality
Diffraction-limited_system
Photoflash exposure setting measurement
used the common nomenclature values for the apertures; the guide numbers shown here are based on the precise aperture values from the 2 n {\textstyle
Guide_number
Camera feature of combining shots
the image to JPEG or other image file format. The actual exposure values (aperture and shutter speed) are usually kept constant. Auto ISO bracketing is
Autobracketing
Camera model
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
Panasonic_Lumix_DMC-LX7
Ability of any image-forming device to distinguish small details of an object
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
Angular_resolution
Type of camera
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
Pinhole_camera
Topics referred to by the same term
introduced by Canon in 1979, so named because of its user selectable aperture value. Asparagus virus 1, a plant disease. Alta Via 1, a footpath in Italy
AV1_(disambiguation)
Android-based smartphones manufactured by Xiaomi Inc.
LYT-600(Rebrand of imx882) sensor with f/1.5 aperture, PDAF, OIS, and a 1/1.95" sensor. 2 MP depth sensor with f/2.4 aperture. The rear cameras support 1080p video
Poco_M7_Pro_5G
1941 photograph by Ansel Adams
luminance of the moon — 250 c/ft2. Using the Exposure Formula, I placed this value on Zone VII ... Realizing as I released the shutter that I had an unusual
Moonrise, Hernandez, New Mexico
Moonrise,_Hernandez,_New_Mexico
Measurement of electromagnetic radiation
view-limiting aperture contributes a 0.13% signal not accounted for in the three ACRIM instruments. This correction lowers the reported ACRIM values, bringing
Solar_irradiance
Application of radar which is used to create two-dimensional images
synthetic aperture radar (SAR) and inverse synthetic aperture radar (ISAR) imaging. Emerging technology utilizes monopulse radar 3-D imaging. Real aperture radar
Imaging_radar
APT
Aperture Photometry Tool (APT) is software with a graphical user interface for computing aperture photometry on astronomical imagery. Image overlays,
Aperture_Photometry_Tool
Acronyms that begin with the letter A
av – (s) Avar language (ISO 639-1 code) aV – (s) Attovolt Av – (i) Aperture value (photographic mode) AV (s) Anguilla (FIPS 10-4 territory code) (i) Audio-Visual
List_of_acronyms:_A
Interference phenomenon of waves
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
Diffraction
35mm SLR camera
anti-clockwise turn of the aperture ring while depressing a small release button on it and then returned to the required preset aperture value. In this way, the
Mecaflex
Lobes of far field radiation pattern of antenna
Simple substitutions of various values of X into the canonical equation yield the following results: For a circular aperture antenna, also having a uniform
Sidelobes
Unit of information
DAT-ə, India: /ˈdiːtə/ DEE-tə) is a collection of discrete or continuous values that conveys information, describing the quantity, quality, fact, statistics
Data
time, Camera settings: Exposure mode, shutter speed, Aperture value, Exposure compensation value, Metering method, Flash on / off, Camera sensitivity
Minolta_Dimage_7_series
Camera manufactured between 1960 and 1963
The camera had no light meter. It offered three shutter speeds and aperture values had to be set by a separate light meter, by guesswork or by following
ADOX_Polo
Mathematical explanation of far field diffraction
derived from the wave equation, which describes the wave diffracted by an aperture; analytical solutions to this equation are not available for most configurations
Fraunhofer diffraction equation
Fraunhofer_diffraction_equation
fashion, with the camera either holding the aperture fully open or letting it stop down to the selected value, and the lens indicating the selected relative
Dandelion_chip
Antenna using a traveling wave
short effective aperture, so that the radiated beam has a large beamwidth. Conversely, a low value of α results in a long effective aperture and a narrow
Leaky_wave_antenna
Photographic technique
either the lens aperture or the exposure time; which one is changed usually depends on the camera's exposure mode. If the mode is aperture priority, exposure
Exposure_compensation
How much a beam expands as it travels
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
Beam_divergence
2011 APS-C digital single-lens reflex camera
choose manually the aperture and shutter speed. Av (Aperture priority): The camera lets the user choose the aperture (f/) value and then automatically
Canon_EOS_1100D
Group of islands in the South Atlantic
much higher speeds than previously available. Since 2006, a very-small-aperture terminal has provided bandwidth for government purposes that is also made
Tristan_da_Cunha
Annual award by the Academy of Motion Picture Arts and Sciences
established a set of "representation and inclusion standards", called Academy Aperture 2025, which a film is now required to satisfy in order to compete in the
Academy Award for Best Picture
Academy_Award_for_Best_Picture
Medical diagnostic method
imaging plane, which can be applied to tomographic imaging. Synthetic aperture processing (SA) differs from traditional imaging systems when collecting
Terahertz_tomography
Imaging and diffraction using electrons that pass through samples
and the filtering effect of the aperture. Aperture assemblies are often equipped with micrometers to move the aperture, required during optical calibration
Transmission electron microscopy
Transmission_electron_microscopy
Historically popular gauge of film
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
16_mm_film
Photographic lens
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
Sony_FE_24-70mm_F2.8_GM_II
Part of an eye
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
Pupil
Method for detecting and tracking objects that give off infrared radiation
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
Infrared_search_and_track
Compact astronomical body
black hole shadow. The angular resolution of a telescope is based on its aperture and the wavelengths it is observing. Because the angular diameters of Sagittarius
Black_hole
Visual artifact that depicts or records perception
also be regarded for its purely aesthetic qualities, rarity, or monetary value. Such reactions can depend on the viewer's context. A religious image in
Image
Inventor of Synthetic-aperture Radar
originator of the solar sail concept as well as the inventor of synthetic aperture radar. Wiley's research work began at the Air Force Aircraft Radiation
Carl_A._Wiley
Technique for recording widescreen images onto a 4:3 frame
with anamorphic lenses. Due to differences in the camera gate aperture and projection aperture mask sizes for anamorphic films, however, the image dimensions
Anamorphic_format
American film producer
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,
Shirley_Burden
Species of gastropod
Barycypraea fultoni Apertural views of shells of Barycypraea fultoni (right) and Bernaya teulerei (left) Scientific classification Kingdom: Animalia Phylum:
Barycypraea_fultoni
American photographer and environmentalist (1902–1984)
first photography exhibition, helped to found the photography magazine Aperture, and co-founded the Center for Creative Photography at the University of
Ansel_Adams
Rayleigh distance in optics is the axial distance from a radiating aperture to a point at which the path difference between the axial ray and an edge ray
Rayleigh_distance
Use of radar systems mounted on satellites
Earth-observing satellites, such as RADARSAT, have employed synthetic aperture radar (SAR) to obtain terrain and land-cover information about the Earth
Space-based_radar
Distance over which a wave's shape repeats
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
Wavelength
APERTURE VALUE
APERTURE VALUE
Boy/Male
Japanese
High-valued second son.
Girl/Female
English American
Of high value; brilliant. The precious diamond stone.
Boy/Male
Muslim
Value, Price
Girl/Female
English
Of high value; brilliant. The precious diamond stone.
Girl/Female
English
Of high value; brilliant. The precious diamond stone.
Boy/Male
Tamil
Ruby, Valued, Honoured, Gem
Boy/Male
Tamil
Sanskar | ஸஂஸà¯à®•à®¾à®°
Good ethics and moral values
Sanskar | ஸஂஸà¯à®•à®¾à®°
Boy/Male
Tamil
Priyangu | பà¯à®°à®¿à®¯à®‚கà¯
It means one who is loving and charming. its actually a flower which has medicinal values
Priyangu | பà¯à®°à®¿à®¯à®‚கà¯
Boy/Male
Hindu
Ruby, Valued, Honoured, Gem
Surname or Lastname
English (also present in Ireland)
English (also present in Ireland) : from Middle English peni, peny ‘penny’, applied as a nickname, possibly for a person of some substance or for a tenant who paid a rent of one penny. This was the common Germanic unit of value when money was still an unusual phenomenon. It was the only unit of coinage in England until the early 14th century, when the groat and the gold noble were introduced, and was a silver coin of considerable value. There is some evidence that the word was used in Old English times as a byname.
Surname or Lastname
Italian and French
Italian and French : nickname for a man with a large paunch, from Italian, Old French ventre ‘belly’ (Latin venter).Italian : probably from a short form of the personal names Bonventre or Brazzaventre.English : nickname for a bold or daring person, from Middle English aventure ‘chance’, ‘hazard’. Compare Venters.
Boy/Male
Indian
Value, Price
Surname or Lastname
English, Scottish, Dutch, and German
English, Scottish, Dutch, and German : metonymic occupational name for a herring fisher or for a seller of the fish, Middle English hering, Dutch haring, Middle High German hærinc. In some cases it may have been a nickname in the sense of a trifle, something of little value, a meaning which is found in medieval phrases and proverbial expressions such as ‘to like neither herring nor barrel’, i.e. not to like something at all.German : habitational name from Herringen in Westphalia.Dutch : from a personal name, a derivative of a Germanic compound name with the first element hari, heri ‘army’.Jewish (Ashkenazic) : variant spelling of Hering.
Surname or Lastname
English
English : habitational name from any of various minor places called Worthy, from Old English worðig, a derivative of worð ‘enclosure’.English : nickname for a respected member of the community, from Middle English worthy ‘valuable’ (a derivative of worth ‘value’, ‘merit’, Old English weorð).
Surname or Lastname
English (Bristol, Gwent)
English (Bristol, Gwent) : from Middle English tresor ‘treasure’, ‘wealth’, ‘riches’ (Old French trésor, from Latin thesaurus ‘hoard’), hence a metonymic occupational name for a treasurer or person in charge of financial administration, or an affectionate nickname for a loved or valued person.
Female
English
English name derived from the month name April, from Latin Aprilis, from aperire, APRIL means "to open," in reference to the opening of flowers in spring.Â
Boy/Male
Hindu
Honored by many, Universally respected and valued
Boy/Male
Biblical Welsh
Honor of God; valued of God.
Surname or Lastname
English (Lancashire)
English (Lancashire) : habitational name from a place in the parish of Wigan (now in Greater Manchester), so called from Old English mearc ‘boundary’ + lanu ‘lane’.English (Lancashire) : topographic name for someone who lived by a stretch of border or boundary land (see Mark) or a status name for someone who held land with an annual value of one mark.
Girl/Female
English
Of high value; brilliant. The precious diamond stone.
APERTURE VALUE
APERTURE VALUE
Girl/Female
Australian, Greek, Hebrew
Lambkin; Dew of God; Abbreviation of Natalia; Dew Drop
Male
Hebrew
(×וּזָל) Hebrew name of uncertain derivation, possibly UWZAL means "to depart, to leave," "to be flooded," or "to be exhausted." In the bible, this is the name of a descendant of Joktan.
Girl/Female
Hindu
Musical instrument
Girl/Female
Assamese, Bengali, Indian, Tamil
Pure
Boy/Male
Hindu, Indian
Victory
Girl/Female
Hindu
Knowledge, Wisdom, Buddhi
Girl/Female
Tamil
Tridhara | தà¯à®°à®¿à®¤à®°à®¾
The river Ganga
Boy/Male
Indian
Boy/Male
African, Arabic, Swahili
Expensive; Scare; Costly
Surname or Lastname
English
English : apparently a habitational name from a lost or unidentified place, possibly in southeastern England, where the modern surname is most frequent.
APERTURE VALUE
APERTURE VALUE
APERTURE VALUE
APERTURE VALUE
APERTURE VALUE
n.
An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall.
n.
A hole; an aperture.
n.
A hole made by boring or piercing; an aperture.
v. t.
To make an overture to; as, to overture a religious body on some subject.
p. pr. & vb. n.
of Perjure
v. t.
To perturb.
n.
The edge of the aperture of a univalve shell.
n.
An aperture in a tromp.
n.
The act of opening.
n.
The act of opening; an opening; an aperture.
a.
Having an entire aperture; -- said of many univalve shells.
a.
Not perforated; having no opening or aperture.
n.
A narrow and elongated aperture; a cleft; a fissure.
v. t.
To draw through an eye or aperture.
n.
Inner margin of the aperture of a shell.
n.
The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.
n.
An opening affording entrance or exit; orifice; aperture;
imp. & p. p.
of Perjure