photorat
Registered Abuser
I am using CV's externally mounted low angle finder with 21mm attachment with my 15mm Helliar. As this lens isn't rangefinder coupled, this is a great little tool. But I'd love to be able to attach something similar to the internal viewfinder for use with other lenses (something like Leica's angled finder M). Does anyone know of such a thing that would fit the R-D1? As I understand it the thread on the internval viewfinder is the same as many Nikon F series cameras. Perhaps there is something compatible there that I haven't found yet?