10* Rubber Eye Cup For Nikon Fm2 Fm3 For Fuji 690 Viewfinder

Compatible model: For Nikon FM2, for Nikon FM3, for Fujifilm 690. 10 x Blindfold. Enhanced Light Blocking: By shading the area around the viewfinder, the eyecup effectively blocks out unwanted ambient light that can interfere with your vision.