Nikon FM10 - Depth-of-Field Preview; Eyepiece Correction Lenses

Depth-of-Field Preview
In the Viewfinder you can visually observe the depth-
of-fieid provided by the selected F-stop.
1. Adjust the Lens Aperture to the desired F-stop.
Press the Preview Button.
2. Observe the results of increased sharpness on
the (darkened) image in the Viewfinder.
* As it will cause the camera to malfunction, please
refrain from pushing the shutter release button or
winding the film while holding down the preview
lever.
* If you press the shutter release button while
holding down the depth-of-field preview lever, the
reflector mirror stays locked in the halfway
position. Release the depth-of-field preview lever
and the mirror returns to the normal position.
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Eyepiece
Correction
Lenses
_ .
The
viewfinder
eyepiece
has
a
built-in
-1
correction
(suitable
for
most
normal
vision).
;
If
your
vision
requires
correction
and
an
eyepiece
correction
lens
is
fitted,
you
do
not
have
to
wear
eye-glasses
when
taking
pictures.
Stip
the
tens
in
the
groove
in
the
finder
eyepiece.
Eyepiece
correction
lenses
are
available
in
9
s:
oo,
-3, -2,
0,
+0.5,
+1, +2,
+3
(Diopters)
Note:
Some
forms
of
astigmatism
etc.
may
make
dioptric
eyepiece
correction
impossible.
.
Piease
check
with
your
vision
specialist
for
a
recommendation
based
on
your
prescription.
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