Anchorframe equipment library

Formats

The size and cartridge a film was sold in, which is the thing that decides whether it fits a camera at all.

Exposure counts are not formats. A 36-exposure roll and a 24-exposure roll of the same stock are the same film in the same cartridge, so 135-36 and 135-24 are both 135 here — otherwise asking for 35 mm film would miss two thirds of it.