120 film

120 is a format of photographic film. 120 is a roll film, six centimetres high and approximately 82 cm long, and is considered a "medium format". Unlike 35mm film, the size of photographs made with 120 is not universal, and is determined by which camera is used to shoot it; common sizes include 6×6, 6×4.5, 6×7 and 6×9.

120 film was introduced by Kodak for their in 1901 and originally intended for amateur photography but was later superseded in this role by 135 film (35mm). 120 film survives to this day as the only medium format film that is readily available to both professionals and amateur enthusiasts from most major film manufacturers.

120's sister format 220, introduced in 1965, is largely the same as 120, but is twice the length. Many cameras which shoot 120 are also designed to shoot 220, although older 120 cameras that use frame number windows are unsuitable for 220, as it lacks the backing paper that 120 has.