Quote Originally Posted by NormanV View Post
Here are my two modified Nikon Fs. The left hand one has had the mirror box removed and has a leica thread mount. It is used with an external viewfinder with my 15mm Heliar. It is entirely successful and is quieter than my Bessa L. The right hand one is being converted to coupled rangefinder. The rangefinder that I am using is from a Konica Auto S3. I hope to finish it soon.
Well all the Cosina made rangefinder cameras Bessa, Zeiss Ikon, Epson etc are based on an SLR with the mirror box removed, and the Zenit C is a Leica copy rangefinder body witha mirror box so it's not an unknown concept After all the Nikon F isn't that different to the Nikon SP.

So interesting projects good luck.