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What about FF mirrorless cameras?

Jonathon Delacour

Subscriber Member
... I'm guessing that the camera won't be exclusively R. There would be a much bigger market for a mirrorless camera with a short mount register that can take adapters for all sorts of 35mm lenses. If it's a 'smart' adapter that preserves the lens' auto-diaphragm and full-aperture metering functions, and a decent viewfinder, I'd be looking very seriously at it.
I had imagined the most we could hope for was that auto-diaphragm and full-aperture metering functions would be available for ROM version Leica R lenses only. Would it be possible to design an adapter that provides such functionality for cam-based Leica R lenses plus lenses with widely varying mounts from Canon, Nikon, Sony, etc?
 

doug

Well-known member
I had imagined the most we could hope for was that auto-diaphragm and full-aperture metering functions would be available for ROM version Leica R lenses only. Would it be possible to design an adapter that provides such functionality for cam-based Leica R lenses plus lenses with widely varying mounts from Canon, Nikon, Sony, etc?
I don't see why not. The functional difference between a 3rd-cam lens and a ROM lens is similar to the difference between coded and non-coded M lenses. The auto-diaphragm is completely mechanical and the 3rd cam tells the camera everything it needs to know for full-aperture metering. The ROM tells the camera what lens is attached for software corrections and the like, but there's no reason a smart adapter can't have a lens database built into it, as the M9 does for non-coded lenses.
 
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