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840 terms · page 23 of 35
Multiple Exposure
Combining two or more exposures onto a single frame, either in camera or during processing.
Optics, Lenses & FiltersNano Coating
A coating built from structures smaller than the wavelength of light, creating an extremely low refractive index layer that almost…
Exposure & MeteringNative ISO
Any ISO value produced by real analogue gain in the sensor's readout circuitry, as opposed to numbers created by brightening the file in…
Composition & Visual DesignNegative Space
The empty or unoccupied area surrounding the subject, which gives it room and defines its shape.
Optics, Lenses & FiltersNeutral Density Filter
A grey filter that reduces the amount of light entering the lens uniformly across all wavelengths, without altering colour.
Genres, Movements & TheoryNew Colour Photography
The movement of the 1970s that established colour as a serious medium for art photography rather than a commercial or amateur one.
Genres, Movements & TheoryNew Objectivity
A German movement of the 1920s favouring clear, unsentimental description of the world, often in close-up and typological form.
Genres, Movements & TheoryNew Topographics
A 1975 exhibition and the approach it named, photographing the altered landscape — suburbs, industrial parks, car parks — in a deliberately…
Genres, Movements & TheoryNew Vision
An interwar movement, associated with the Bauhaus, that treated the camera as a device for seeing in ways the eye cannot.
Sensors & Digital CaptureNoise Floor
The level of background noise below which no real signal can be distinguished.
Post-Processing & RetouchingNon-destructive Editing
An approach in which adjustments are stored as instructions rather than being written into the pixels of the original file.
Printing, Display & OutputNozzle Check
A test pattern printed to confirm that every ink channel is firing correctly.
Sensors & Digital CaptureNyquist Limit
The highest spatial frequency a sensor can record correctly, equal to half its sampling rate.
Lighting & FlashOctabox
An eight-sided softbox whose near-circular shape produces round catchlights and even wrap-around light.
Printing, Display & OutputOffset Lithography
The dominant commercial printing process, in which ink is transferred from a plate to a rubber blanket and then to paper.
Cameras, Formats & SystemsOne-inch Type Sensor
A sensor measuring about 13.2 by 8.8 millimetres, with a crop factor near 2.7×, common in premium compacts and drones.
Optics, Lenses & FiltersOnion-ring Bokeh
Concentric rings visible inside out-of-focus highlights, caused by tooling marks on a moulded aspherical element.
Post-Processing & RetouchingOpacity
The degree to which a layer or adjustment obscures what is beneath it, expressed as a percentage.
Lighting & FlashOpen Shade
An area shielded from direct sun but open to a large expanse of sky, giving soft, even illumination.
Printing, Display & OutputOptical Brightening Agents
Fluorescent additives in paper that absorb ultraviolet light and re-emit it as blue, making the sheet look whiter.
Motion, Video & Creative TechniquesOptical Image Stabilisation
Stabilisation achieved by moving a lens group to counteract camera shake.
Sensors & Digital CaptureOptical Low-pass Filter
A birefringent layer in front of the sensor that slightly blurs the image to prevent detail finer than the pixel grid from being recorded.
Lighting & FlashOptical Slave
A sensor that fires a flash when it detects the light from another flash.
Cameras, Formats & SystemsOptical Viewfinder
A finder that shows the scene by direct optical path rather than on a screen.