Nikon f instruction manual Accessories-Finder Eyecup, Accessories-Eyepiece Correction Lenses

Note: If you wish to leave a filter on the lens to protect it against accidental damage, the use of the L37 filter is recommended.

If the lens is pointed toward the sun or toward a very bright light at ni2rkt, it is best to remove any filter, including the L37, since light reflected from the filter surface may form ghost images on the film.

Accessories-Finder Eyecup

The finder eyecup screws directly onto the finder eyepiece to prevent extraneous light from entering the viewfinder.

Accessories-Eyepiece Correction Lenses

Eyepiece correction lenses are designed to permit near-sighted or far-sighted users to view and focus without their glasses. They screw directly into the rear of the viewfinder. Available in nine diopters, -2,-3, - 4,-5, O, +0.5, +1, +2 and +3, each representing the combined dioptry of the lens and the -1 diopter of the finder.