620 film was a roll film format for still photography introduced by Kodak in 1932, and is a variant of 120 film. The actual film itself is the same as 120, but the spool had a smaller core and end flanges. Like 120 film it is a medium format film and the negatives are much larger than 135 film, so it is capable of taking very high quality photographs.
Kodak intended 620 film to replace 120, but 120 film won out and is still produced which means that owners of cameras that take 620 film can still use them if, for example, they respool the film onto either an original 620 spool or use a modified 120 spool.
Most models of camera to take 620 film were made by Kodak, beginning with the Kodak Six-20, and ending with the Kodak Brownie Reflex 20 which was discontinued in 1966. Kodak had previously introduced the Instamatic camera range in 1963, using the much easier to load 126 cartridge film.
Kodak continued to make 620 film until 1995.
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