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840 terms · page 20 of 35
Lens Group
One or more elements cemented or fixed together that move as a single unit inside a lens.
Optics, Lenses & FiltersLens Hood
A shade fitted to the front of a lens to block light from outside the angle of view before it can strike the front element.
Cameras, Formats & SystemsLens Mount
The mechanical and electronic interface that couples a lens to a camera body.
Post-Processing & RetouchingLevels
A tonal adjustment that sets the black point, white point and midtone gamma of an image or channel.
Motion, Video & Creative TechniquesLevitation Photography
A composite technique creating the appearance of a subject floating, by combining a supported pose with a clean background frame.
Lighting & FlashLight Falloff
The rate at which illumination decreases with distance from the source, across the subject or into the background.
Motion, Video & Creative TechniquesLight Painting
Illuminating a scene, or drawing in the air, with a moving light source during a long exposure.
Motion, Video & Creative TechniquesLight Trails
Continuous streaks recorded when a moving light source crosses the frame during a long exposure.
Lighting & FlashLighting Ratio
The relationship between the illumination on the lit side of a subject and that on the shadow side, expressed as a ratio or in stops.
Colour & Colour ManagementLightness
The perceived brightness of a colour on a scale from black to white, independent of its hue and chroma.
Sensors & Digital CaptureLine Skipping
Reading only a fraction of a sensor's rows to produce a lower-resolution image quickly, discarding the rest.
Composition & Visual DesignLinear Perspective
The geometric effect by which parallel lines receding from the viewer appear to converge toward a point.
Sensors & Digital CaptureLinear Response
The property of a digital sensor that its output is directly proportional to the number of photons received.
Post-Processing & RetouchingLiquify
A tool that pushes, pulls, expands or contracts image areas as though the pixels were fluid.
Cameras, Formats & SystemsLive View
A mode that shows a continuous sensor feed on the rear screen instead of, or as well as, the viewfinder.
Post-Processing & RetouchingLocal Contrast
Contrast measured between neighbouring areas rather than across the whole tonal range, which strongly affects perceived depth and clarity.
Motion, Video & Creative TechniquesLog Profile
A recording curve that stores tonal information logarithmically to preserve maximum dynamic range for grading.
Motion, Video & Creative TechniquesLong Exposure
An exposure lasting long enough that moving elements record as blur or streaks while static ones stay sharp.
Sensors & Digital CaptureLong Exposure Noise Reduction
A camera function that records a second, unexposed frame of equal duration and subtracts its noise pattern from the image.
Optics, Lenses & FiltersLongitudinal Chromatic Aberration
Colour fringing caused by different wavelengths focusing at different distances, producing purple in front of focus and green behind it.
Colour & Colour ManagementLook-up Table (LUT)
A table mapping input colour values to output values, used to apply a colour transformation quickly and repeatably.
Exposure & MeteringLooney 11 Rule
The lunar counterpart to Sunny 16: a full moon is correctly exposed at f/11 with a shutter speed of one over the ISO.
Lighting & FlashLoop Lighting
A portrait pattern in which the nose casts a small loop-shaped shadow onto the cheek without touching the cheek shadow.
Files, Metadata & WorkflowLossless Compression
Compression that reduces file size while allowing the original data to be reconstructed exactly.