Quote:
Originally Posted by skysurfer
On a full frame 5DSR this will vignette. Use a 48mm adapter which I use for my 6D.
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Yes I mentioned vignetting and some wider options in my previous reply. A standard one will get the OP started and that is what I used on my Nikon FE2 many years ago. I did eventually upgrade to a special focuser from Tectron that had a very wide draw tube and very thin T-ring.