04-18-2011, 06:21 PM
[quote name='karlmera' timestamp='1303148903' post='7741']
The lens has a back focal distance of 28,8mm and the EOS has 44mm FFD. Nikon has 46,5mm FFD an gets 1:3. But that is OK.
[/quote]
The lens actually has a flange distance of 43mm. I think you are referring to the flange distance of standard LSM (M39). But this is no standard LSM lens, only the M39 thread is similar.
So.. with a thin enough adapter, you could actually get very close to 1:4 on EF mount. One has to make sure that the mirror clears the back of the lens though, so 1:4 on a full frame camera may be a problem. But APS-C should be fine.
The lens has a back focal distance of 28,8mm and the EOS has 44mm FFD. Nikon has 46,5mm FFD an gets 1:3. But that is OK.
[/quote]
The lens actually has a flange distance of 43mm. I think you are referring to the flange distance of standard LSM (M39). But this is no standard LSM lens, only the M39 thread is similar.
So.. with a thin enough adapter, you could actually get very close to 1:4 on EF mount. One has to make sure that the mirror clears the back of the lens though, so 1:4 on a full frame camera may be a problem. But APS-C should be fine.