I'm having some trouble mounting lenses to my Nikon FM, and was hoping for some feedback or info.
I've had a 28mm Nikkor 1:2.8 AI lens on my FM for a while now, and just bought an E-Series 50mm 1:1.8, but cannot get it to mount.
The problem is with a small mount/shelf attached to the inside body of the camera, just above the mirror, adjacent to the focusing screen, with a small screw holding it place. Essentially along the top-side of the square. My 28mm lens rubs against it, but manages to go on alright (it's removed a small section of the black paint on the rear of the lens--see photo). But this E-Series lens won't budge.
I've seen other FMs with this exact lens, however I can't find a photo of an FM body online that has this little shelf. All either have nothing, or just a small screw without the mount.
It looks factory installed, with the frame behind having a small recess to accommodate it. And from what I can tell from the surface, it's had a light seal strip along it.
Has anyone encountered this in an FM before, and if so--is it safe to remove?
See attached photos for reference.