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Forums > Back > Ultra-Micro-NIKKOR 55mm f2
#18
[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.
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Messages In This Thread
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 03-22-2011, 12:13 AM
Ultra-Micro-NIKKOR 55mm f2 - by finaldesignrb - 03-22-2011, 03:50 AM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 03-22-2011, 02:09 PM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 03-23-2011, 02:13 PM
Ultra-Micro-NIKKOR 55mm f2 - by Yakim - 03-27-2011, 08:54 PM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 04-02-2011, 02:05 PM
Ultra-Micro-NIKKOR 55mm f2 - by Yakim - 04-02-2011, 10:03 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-16-2011, 08:07 PM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 04-17-2011, 12:32 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-17-2011, 07:22 PM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 04-17-2011, 08:21 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-18-2011, 07:24 AM
Ultra-Micro-NIKKOR 55mm f2 - by Yakim - 04-18-2011, 10:09 AM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-18-2011, 11:24 AM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 04-18-2011, 01:26 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-18-2011, 05:37 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-18-2011, 05:48 PM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 04-18-2011, 06:21 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-18-2011, 07:38 PM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 04-19-2011, 08:26 AM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-20-2011, 07:05 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-20-2011, 07:09 PM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 04-21-2011, 03:38 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-21-2011, 03:58 PM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 04-21-2011, 04:06 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-21-2011, 05:33 PM
Ultra-Micro-NIKKOR 55mm f2 - by Brightcolours - 04-21-2011, 05:47 PM
Ultra-Micro-NIKKOR 55mm f2 - by karlmera - 04-21-2011, 06:59 PM

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