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01-24-2011, 10:21 PM   #1
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Q: Nikon 400mm f2.8 ED AIS + Pentax 1.7X AFTC??

I heard about this particular combo on the other forum (Brandrx). I was just wondering if anyone has actually tried this over here? One of the issues mentioned was the need to positively lock the lens to the TC using some kind of clamp or somesuch. Has anyone tried changing the Nikon mount to a K mount? Just wondering.


Last edited by HawaiianOnline; 01-25-2011 at 06:18 PM. Reason: Edited title to make it obvious that it is a question
01-29-2011, 09:59 AM   #2
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QuoteOriginally posted by HawaiianOnline Quote
I heard about this particular combo on the other forum (Brandrx). I was just wondering if anyone has actually tried this over here? One of the issues mentioned was the need to positively lock the lens to the TC using some kind of clamp or somesuch. Has anyone tried changing the Nikon mount to a K mount? Just wondering.
One of the earlier Nikon mounts allows a lens to be mounted on the K mount. It goes on upside down, and does not latch, but is otherwise OK. An online acquaintance, Ed Maruyama in Nunavut has done it.
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