I bought these adapters from China via ebay and they do not work well.
- The Nikon adapter focuses at Infinity when the lens distance scale shows 1.5 meters, making zone focusing and close focus impossible
- The M42 adapter has an incomatible thread, you have to force-screw the lens in and it will not screw in completely. I fear I might damage the lenses.
Could you tell me which suppliers you know to have correctly working Nikkor and M42 adapters. BTW the Nikon adapter need not work for Nikkor G lenses, just classical Nikkors with focus and aperture scale on the lens.
Finally, I am looking for a Cameflex adapter. I have one by Wolfgang Rabe that came with his 25mm/2 Kinoptik, but it does not fit other Cameflex-mount lenses I bought in the meantime:
similar problem as with the Nikkor, incorrect infinity registration. He must have modified the lens to work with his adapter. I now need 2-3 more Cameflex adapters working correctly with standard Cameflex mount lenses (Kinoptik, Angenieux). Anybody knows a supplier?
Thanks in advance