Editing 120 film (section)

== Other similar 6&nbsp;cm roll films {{anchor|620|105|117}} ==
{{redirect|117 film|the 1976 documentary|117 (film)}}
[[Image:120620spools.jpg|256x256px|right|thumb|Original 120 spool (left) versus a 620 spool]]
The '''105''' format was introduced by Kodak in 1898 for their first [[folding camera]] and was the original 6×9&nbsp;cm format roll film. The '''117''' format was introduced by Kodak in 1900 for their first Brownie camera, the No.1 Brownie, 6×6&nbsp;cm format. These formats used the same width film as 120 film, but with slightly different spools. The 105 spool has a much wider flange, similar to the 116 spool, while the 117 spool's flange is slightly narrower than the 120. The 105 and 620 spools also have much thinner flanges than the 117 and 120 spools ({{convert|0.635|mm|in|abbr=on}} vs. {{convert|1.524|mm|in|abbr=on}}); as a result, an unmodified 120 spool will not fit a camera designed for 105 film, such as a No. 1 Folding Pocket Kodak, as the overall length between the ''outside'' of the flanges is too long to fit the width of the film chamber.

The '''620''' format was introduced by Kodak in 1931 as an intended alternative to 120. Although mostly used by Kodak cameras, it became very popular.  The 620 format is essentially the same film on a thinner and narrower all-metal spool (the 120 spool core was made of wood at that time):

* '''105''' 2.509" (63.7 mm) width, 1.250" (31.8 mm) flange, 0.468" (11.9 mm) core
* '''117''' 2.470" (62.7 mm) width, 0.875" (22.2 mm) flange, 0.468" (11.9 mm) core
* '''120''' 2.???" width, 0.990" (25.1 mm) flange, 0.468" (11.9 mm) core
* '''620''' 2.???" width, 0.905" (23.0 mm) flange, 0.280" (7.1 mm) core

Hence the 620 is sometimes referred to as "small hole" 6×6 or 6×9 as opposed to 120 "large hole". The 620 format was discontinued by Kodak in 1995, but it is possible to rewind 120 film onto a 620 spool in the darkroom for use in 620 cameras. According to Kodak, the narrower metal spool allowed building smaller cameras. Nonetheless the 120 format cast-metal bodied [[Voigtländer Perkeo]] remains smaller than any 620 format camera.