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Terms starting with P

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Genres, Movements & Theory

Photographic Ethics

The body of principles governing how photographers treat subjects, audiences and the truthfulness of their images.

Film, Darkroom & Historic Processes

Photographic Paper

Paper coated with a light-sensitive emulsion, used to make prints from negatives.

g/m²
Genres, Movements & Theory

Photographic Series

A set of images made to a consistent rule or format, where the repetition itself carries meaning.

count
Genres, Movements & Theory

Photographic Truth

The contested assumption that a photograph is a reliable record of what was in front of the camera.

Genres, Movements & Theory

Photojournalism

Photography made to report news, bound by professional standards of accuracy and non-interference.

Motion, Video & Creative Techniques

Photomicrography

Photography through a microscope, recording subjects at magnifications far beyond macro.

× magnification
Sensors & Digital Capture

Photosite

A single light-collecting element on a sensor, corresponding to one pixel in the final image.

µm
Files, Metadata & Workflow

Pick Flag

A binary marker used during a first culling pass to separate keepers from rejects.

Genres, Movements & Theory

Pictorialism

A movement from the 1880s to the 1910s that sought recognition for photography as art by imitating painting and printmaking.

Printing, Display & Output

Pigment Ink

Ink in which the colourant is solid particles suspended in a carrier, sitting on the paper surface rather than dissolving into it.

Optics, Lenses & Filters

Pincushion Distortion

A geometric distortion in which straight lines bend inward toward the centre, pinching the frame corners outward.

%
Cameras, Formats & Systems

Pinhole Camera

A lensless camera that forms an image through a tiny aperture, giving infinite depth of field and extremely long exposures.

d = √(2 × λ × f) mm
Sensors & Digital Capture

Pixel Binning

Combining the signal from several adjacent photosites into one output pixel to improve signal-to-noise ratio.

SNR gain ≈ √n × (2×2, 4×4)
Files, Metadata & Workflow

Pixel Dimensions

The width and height of an image measured in pixels, which is its only fixed measure of size.

Total pixels = width × height px
Sensors & Digital Capture

Pixel Pitch

The centre-to-centre distance between adjacent photosites on a sensor.

Pitch = sensor width / horizontal pixels µm
Sensors & Digital Capture

Pixel Shift Multi-shot

A mode that moves the sensor by precise sub-pixel amounts between exposures and combines the frames into one higher-quality image.

count (4, 8, 16 frames)
Focus & Depth of Field

Plane of Focus

The flat surface, parallel to the sensor, at which the subject is rendered with maximum sharpness.

m
Film, Darkroom & Historic Processes

Platinum Print

A contact printing process using platinum or palladium salts, giving an exceptionally long tonal scale and great permanence.

Files, Metadata & Workflow

PNG

A lossless format with transparency support, designed for graphics and screen use rather than photographic delivery.

MB
Composition & Visual Design

Point of View

The position from which a photograph is taken, encompassing height, angle, distance and orientation.

Genres, Movements & Theory

Portraiture

Photography whose subject is a person, aiming to convey something of their character, role or presence.

Composition & Visual Design

Positive Space

The area of the frame occupied by the subject itself.

Post-Processing & Retouching

Post-crop Vignette

A deliberate darkening or lightening of the frame edges, applied relative to the cropped boundaries rather than the original ones.

stops
Genres, Movements & Theory

Postmodern Appropriation

An artistic strategy of rephotographing or reusing existing images to question authorship, originality and the circulation of pictures.