Fixing viewing in the Nikon FE | Photographs, Photographers and Photography
Nikon FM Eyepiece Correction Attachment Type 0 - The Classic Camera
Nikonclassics Michalke - Eyepiece for Nikon FE, FM, FA etc.
Nikon FM Eyepiece corrector -2.0 - Camera Concepts & Telescope Solutions
There's this weird bar thing in the viewfinder of this Nikon FM. Mirror looks to be ok, could it some problem with the prism? Nikon FM : r/AnalogCommunity