Film, Darkroom & Historic Processes
60 terms · page 2 of 3
E-6 Process
The standardised chemical process for developing colour reversal film into positive transparencies.
Film, Darkroom & Historic ProcessesEmulsion
The light-sensitive coating on film or paper, consisting of silver halide crystals suspended in gelatin.
Film, Darkroom & Historic ProcessesEnlarger
A darkroom device that projects a negative onto photographic paper to produce a print larger than the original.
Film, Darkroom & Historic ProcessesEnlarging Lens
A lens optimised for projecting a flat negative onto flat paper at close range.
Film, Darkroom & Historic ProcessesFibre-based Paper
Photographic paper whose emulsion is coated directly onto a paper base with no plastic layer.
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.
Film, Darkroom & Historic ProcessesFilm Speed
A film's sensitivity to light, rated on the ISO scale and formerly as ASA or DIN.
Film, Darkroom & Historic ProcessesFixer
A solution that dissolves the undeveloped silver halide, making the image permanent and no longer light-sensitive.
Film, Darkroom & Historic ProcessesInfrared Film
Film sensitised beyond the visible spectrum into the near infrared, producing distinctive tonal reversals.
Film, Darkroom & Historic ProcessesLatent Image
The invisible record formed in an emulsion by exposure, before development makes it visible.
Film, Darkroom & Historic ProcessesOrange Mask
The integral orange-coloured layer in colour negative film that corrects for imperfections in its dyes.
Film, Darkroom & Historic ProcessesOrthochromatic Emulsion
A black and white emulsion sensitive to blue and green but not to red light.
Film, Darkroom & Historic ProcessesPanchromatic Emulsion
A black and white emulsion sensitised to all visible wavelengths, rendering colours as plausible grey tones.
Film, Darkroom & Historic ProcessesPaper Grade
A number describing the contrast of a graded photographic paper, from soft grade 0 to very hard grade 5.
Film, Darkroom & Historic ProcessesPhotogram
An image made by placing objects directly on photographic paper and exposing it to light, without a camera.
Film, Darkroom & Historic ProcessesPhotographic Paper
Paper coated with a light-sensitive emulsion, used to make prints from negatives.
Film, Darkroom & Historic ProcessesPlatinum Print
A contact printing process using platinum or palladium salts, giving an exceptionally long tonal scale and great permanence.
Film, Darkroom & Historic ProcessesPull Processing
Rating a film below its nominal speed and shortening development to compensate.
Film, Darkroom & Historic ProcessesPush Processing
Rating a film above its nominal speed and extending development to compensate.
Film, Darkroom & Historic ProcessesReciprocity Failure
The breakdown of the reciprocity law at very long or very short exposures, where film needs more light than calculation predicts.
Film, Darkroom & Historic ProcessesResin-coated Paper
Photographic paper sealed between thin polyethylene layers so chemistry cannot penetrate the base.
Film, Darkroom & Historic ProcessesSafelight
A darkroom lamp emitting only wavelengths to which the material in use is insensitive.