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Hey guys, Firstly, I have only shot on film once, and I don’t own a camera, so forgive me if my terminology is not perfect! Im sorry if this is the wrong place to post this. im in the process of designing and building my own 16mm film camera. I have the transport reasonably sorted (ignore the take up spool spinning in the wrong direction and not at the correct speed, still need to code that part out), however I still want to refine the pressure plate and add a spring on the rail for lateral support. However, at the moment I’m trying to dial in the flange focal distance. I’m using a Sony e mount on the camera so it has a very short FFD of 18mm. I understand that the depth should be set a slightly short of that so it ends up focusing just past the emulsion. After reading, I’m thinking I get a depth micrometer and put a gauge block against the gate then take the measurement that way. Is a depth micrometer that does 0.01 mm fine enough or do I need to be investing in a 0.001mm? Is the depth micrometer the best way? How do actual camera techs do it? Also if you have any other tips for the camera please feel free to let me know!! I will link a little video of it running - Thank you in advance:) Henry

I was wondering if there was any way to convert a C/Y mount to PL mount without a full rehousing. I would love to have a set of MMJ Contax Zeiss lenses in PL mount but so far I haven't seen little to any information regarding this subject. I know it's possible to convert a C/Y mount to M42 so maybe it would be possible to convert it to M2 first, then screw on an M42 to PL adapter which might work on few C/Y lenses but I know for sure the diameter of the particular Contax lenses I want would be too wide to fit inside of the adapter. And I I know It wouldn't be possible to make the flange of the PL mount adapter flush with the flange of the C/Y Mount because the flange focal distance of a C/Y mount needs to be 45.50 mm from the film plane and a PL mount needs to be 52.00mm from the film plane so in theory would need to remove 6.5mm worth of material from the rear of the lens to accommodate for the difference in FFD (Which wouldn't normally be TOO hard), however of course on majority of the C/Y lenses the aperture ring is pretty much right up against the flange of the mount. I guess I could remove the aperture ring but then what? Maybe someone has any input as to how I could possibly pull this off but I believe I've hit a dead end.