I have seen aerial lenses perfectly corrected for infinity to 1:200. the have backfocus 21 and 24mm. Since i dont yet really understand backfocus i am asking:
is it the distance from the rear lens to film/sensor?
If yes then a mirror-cam like rz67 or hasselblad 2000 would be out of the game, right? but it cold possibly be used in a mamiya press or not?
The other options are gaorsi, fotoman and dayi.
register versus backfocus-distance
which register has mamiya press and which backfocus distances 50 and 75mm lenses.
I once had a DIY-Linhof Technar-like construction from a friend with mamiya press-lens mount and international back. genious.
From a red-forum:
Flange Depth - The physical distance between the lens mount plate and the focusing surface of the cameraq sensor.
Back Focus - The optical distance that a properly collimated lens is set to so that the image focuses on the correct plane.
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So flange depth means register (distance)
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