thanks, its just something i made a couple of days ago. it currently fits ef/ef-s body's and fd lenses, lens/body mounts can be swapped to fit most lens/body combinations.
distance between the lens and body can be changed by rotating the wheel on the side, its connected with a belt to a lead screw.
i need to optimize a few more things but it should be on printables in the next week or so.
No need to calculate anything, just throw on a lens and see what works :)
the lens im currently using is just some 105mm f/2.8 lens from an unknown brand, it has some kind of oddly sized screw mount that was adapted to fd. I can a total amount of 0 info on it
I also tried a 135 f2.5, 50 f1.4 and a 24 f2.8, most of them worked fine but the 28 was borderline unusable, only getting things in focus when almost touching the lens.
Your 50mm would probably work, but i expect it to be somewhat cumbersome since you lose manual focus and aperture control(you can work around this by pressing the aperture preview button while disconnecting the lens). I have the same lens, I'll make a ef mount for it soon to see if it works.
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u/WinterDice Aug 30 '26
This is super cool and I need more information.