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Originally posted by MarkJerling I'll stick to my knitting.
Making cameras is more fun for me.
Here is my attempt to make a mount for a medium format Graflock using 70+ year old vintage measuring equipment.
https://app.box.com/s/eudh2q4yvz2j60l4tbx19607rbecewqv
In those days, Rochester USA was the photographic center.
There was a USA standard that stipulated the allowable film flatness tolerances on these press type camera backs, which was a warp limit of 0.007 inch (0.178mm)
When I adapted a Super Angulon 65mm to a 1953 Baby Graflex, I had problems with tolerance on the front standard with that wide angle lens.
So I made a "jigger" milled flat and square, to set up the camera. It was a challenge to get it right.
https://app.box.com/s/f4mx4n06jpveooq6fksud3i8yv98hlea
I learned on APUG that such "jiggers" were somewhat common back in the day to align non standard lenses to the old cameras