I have a very nice Russian MTO 500mm f8 mirror lens missing the adapter that screws on to the back of the lens and having either a M39 or M42 camera lens screw adapter. The problem is my 500mm lens seems to have a non-standard rear mount. It measures 35.5mm whereas the standard seems to be slightly larger by about a 1/2mm. I am looking for the screw mount that fits the 35.5mm rear on my lens and permits me to add a adapter for the M39 or M42 to convert to a Canon EOF or Nikon mount. Please see the attached picture.
Russian MTO 500mm Mirror lens
No replies to this topic