Metal/Brass film cassettes for M7

[begona]

Hi all

just a quick one. I know that Leitz cassettes do not work with M7, but what about other brands? What about Pentax? Those seems nice but can they fit in the camera?

Thanks.
Goran

 

[Bill Clark]

Little bit of history to help you:

https://camerapedia.fandom.com/wiki/35mm_film

Looks like things got standardized with cassettes when Kodak introduced Kodachrome in the 1930’s.