Nikon F2AS PHOTOMIC Instruction Manual page 45

Filters
Nikon filters are made of optical glass, ground and polished
so that both surfaces are optically flat and parallel. Nikkor
lenses and Nikon filters are made for each other. For best
results, use Nikon filters on Nikkor lenses. The filters are
available in both screw-in and series mounts, depending on
the lens.
Except for the R60, no Nikon filter requires exposure com-
pensation when used with the Nikon F2AS Photomic. When
using the R60 filter under tungsten light, increase the expo-
sure by one f-stop more than indicated by the exposure meter.
Note: If you wish to leave a filter on the lens to protect the lens
against accidental damage, the use of the L37 or L37C filter is rec-
ommended.
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Finder Eyecup
The soft rubber finder eyecup screws directly onto the finder
eyepiece to prevent extraneous light from entering the
viewfinder.
When using an eyepiece correction lens with a finder eyecup,
it is recommended to use the Nikkormat type eyecup. First, fit
the lens into the eyecup in advance. Then screw the assembly
onto the finder eyepiece.
Eyepiece Correction Lenses
The nine eyepiece correction lenses are designed to permit
nearsighted and farsighted users to view and focus without
their glasses. Available in—2, - 3, - 4,—S. 0, +0.5, +1, +2 and
+3 diopters, each representing the combined dioptry of the
lens and the finder. Simply screw into the finder eyepiece.
Camera Cases
Available in hard, semi-soft or soft (pouch) construction, Nikon
camera cases offer excellent protection for your camera body
and mounted lens. Various case sizes are available to accom-
modate most Nikkor lenses mounted on the camera body.
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