Comparison of 35mm and Medium format negative sizes

I found this page while looking for a list of which medium format cameras shoot 6×7 … not exactly what I was originally looking for but wanted to make a note since this is useful information. has a lot of other interesting stuff worth checking out.

120 film: Kodak numbered all of its film types, starting with 100 (I think). So 120 roll film is actually a rather early format. It was used in the Kodak Brownie cameras. The film is 60mm wide and comes on a reusable plastic spool with an opaque black paper backing. This is because unlike 35mm film, 120 film does not come in a light-tight cartridge.

Unlike 35mm film too, 120 film has no standard size. There are a variety of framing options that manufacturers have used:

Format Name Actual Frame Size Shots/roll Cameras
6×4.5 56mm x 42mm
16 Pentax 45, Mamiya 45, Hasselblad H1, etc.
6×6 56mm x 56mm
12 Hasselblad 200/500, Rollei TLR, Yashicamat TLR, etc.
6×7 56mm x 67mm
10 Pentax 67, Mamiya RB67/RZ67, etc.
6×8 56mm x 75mm
8 Some large-format roll-film backs
Mamiya RB67 motorized back
6×9 Some large-format roll-film backs
Fuji wide-angle panoramic rangefinders
Fuji SLR medium format camera
6×17 Some large-format roll-film backs

Compared to 35mm, medium format uses 3~4 times as much film surface. This allows for better tonality (smoother gradations), finer detail, and less apparent grain. The downside is that medium format cameras are bigger, heavier, more expensive, darker lenses (f/2.8 or f/4 is usually the largest aperture), and film-developing costs more.



(2.7x as large as 35mm format)


(3.6x as large as 35mm format)


3752 sq. mm.
(4.3x as large as 35mm format; 1.6x larger than 6×4.5)







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