Time gamma curve see Gamma . Time lapse photography is a method of recording chemical and physical changes in a subject over a period of time by photographing it at regular intervals from the same viewpoint. Timer is a clock used to control processing. Tinting is the application of color tints, usually in the form of dyes or paints, to a photographic image to create or enhance color. Tin-type see Ferrotype .
Tomography is a radiographic technique used in medial photography.
Tone refers to the strength of grays between white and black. It relates to the brightness, lightness and darkness of the subject and is determined by illumination. Tone line process is a technique used to reproduce a photographic image so that it resembles a pen and ink drawing. Toners are used to change the color of the photographic print by chemical baths. Through the system of bleaching and toning, the black metallic silver image is converted to a dye image.