What is C-41 process?
[[File:35 mm Kodak film negative held between fingers, and negative (colour inverted and white balanced) version of it (right).jpg|thumb|A C-41 negative (left), and the same image inverted to produce a positive (right)]] '''C-41''' is the [[Film processing|photographic film process]] used to develop practically all modern still-picture color [[Film negative|negative film]]. It is also used for some [[black and white]] films, such as XP2. [[Slide]] film can also be cross-processed in C-41 to produce a negative. == How the process works == C-41 film has a safety ([[acetate]] or [[Polyethylene terephtalate|polyester]]) film base, tinted orange on most films, with an [[Photographic emulsion|emulsion]] made of [[silver]] [[halide]]s and [[dye]] couplers. These are in multiple layers that record each [[primary color]] separately. When the film is developed, the silver is developed first, like black and white film. [[Redox|Oxidized]] developer then reacts with a dye coupler to produce a visible dye. The film is then bleached and fixed, which removes the silver and unexposed silver halides, making the image permanent. The film cannot be exposed to any light, not even the red darkroom [[safelight]], until the process is completed. The film can then be printed with the [[RA-4 process]], or [[Image scanner|scanned]] into a computer. {{Photography}} [[Category:Photography]]