Terms starting with F
67 terms · page 1 of 3
F-number
The ratio of a lens's focal length to the diameter of its entrance pupil, written f/2.8, f/8 and so on, and the standard way of stating…
Focus & Depth of FieldFace Detection
A system that identifies human faces in the frame and prioritises them for focus and often for exposure.
Sensors & Digital CaptureFalse Colour
Coloured artefacts appearing on fine detail, caused by the colour filter array sampling different colours at different positions.
Genres, Movements & TheoryFarm Security Administration
A United States government programme of the 1930s and 40s that commissioned photographers to document rural poverty during the Depression.
Genres, Movements & TheoryFashion Photography
Photography made to present clothing and to construct a mood or identity around it.
Lighting & FlashFeathering
Aiming a light so the subject is lit by the softer edge of its beam rather than its centre.
Film, Darkroom & Historic ProcessesFibre-based Paper
Photographic paper whose emulsion is coated directly onto a paper base with no plastic layer.
Cameras, Formats & SystemsField Camera
A folding large-format camera built light enough to carry, trading some movement range for portability.
Optics, Lenses & FiltersField Curvature
A defect in which a lens focuses a flat subject onto a curved surface rather than the flat plane of the sensor.
Composition & Visual DesignFigure-Ground Relationship
The perceptual separation of a subject from its background, which determines whether it reads clearly.
Files, Metadata & WorkflowFile Naming Convention
A consistent rule for naming image files so they sort predictably and stay unique.
Files, Metadata & WorkflowFile Size
The storage a file occupies, determined by pixel count, bit depth, channel count and compression.
Lighting & FlashFill Light
A secondary, weaker light or reflector used to raise the shadows the key light casts, controlling contrast.
Composition & Visual DesignFilling the Frame
Composing so the subject occupies most or all of the picture area, leaving little surrounding context.
Film, Darkroom & Historic ProcessesFilm
A flexible transparent base coated with a light-sensitive emulsion, which records an image chemically rather than electronically.
Film, Darkroom & Historic ProcessesFilm Base
The transparent support that carries the emulsion, historically nitrate or acetate and now usually polyester.
Film, Darkroom & Historic ProcessesFilm Grain
The visible texture produced by clumps of developed silver, which becomes more apparent with faster films and greater enlargement.
Post-Processing & RetouchingFilm Simulation
A colour and tone rendering designed to imitate the response of a specific photographic film.
Film, Darkroom & Historic ProcessesFilm Speed
A film's sensitivity to light, rated on the ISO scale and formerly as ASA or DIN.
Exposure & MeteringFilter Factor
The exposure increase, in stops or as a multiplier, needed to compensate for the light a filter absorbs.
Genres, Movements & TheoryFine Art Photography
Photography made primarily as an expressive work rather than to document, illustrate or sell a product.
Optics, Lenses & FiltersFisheye Lens
An ultra-wide lens that deliberately abandons rectilinear projection, bending straight lines to squeeze 180° or more into the frame.
Sensors & Digital CaptureFixed Pattern Noise
Noise that appears in the same places on every frame, caused by small manufacturing differences between photosites.
Film, Darkroom & Historic ProcessesFixer
A solution that dissolves the undeveloped silver halide, making the image permanent and no longer light-sensitive.