Nikon F3 Gebrauchsanweisung - Seite 25
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Backup mechanical release lever
®
This lever
is
provided
as
an alternative method of trip-
ping
the
shutler in case
the
camera's batteries become
weak or completely exhausted
.
To
operate the lever
,
first
use your fingernail to pull it
down
to
the
ready position.
Then
push it down to trip
the shutler. The
shutler operates
at a
mechanical
speed of
approx
.
1160 sec. at
any
setting
on
the
shutler speed
dial except
"T."
At
"T,"
the
shutler
remains open
until the
dial
is turned
to another
setting
.
To
conserve
batlery
power,
it's recommended to use the
backup
mechanical
release lever to trip the
shutler at
"T."
Turn
the power switch off,
and
make sure
the LCD
shutler speed is off before tripping the shutler.
This
prevents batlery drain.
Caution
:
If you odvance the film
while
holding down the backup m echa-
nical release
lever,
the shuller will fire immediotely
at
the
completion
of
the film
advonce stroke,
thus wasting a frame.
Also
if
you fail to advance the film completely and then uSe this
lever
to
tnp the
shuller,
the mirror
®
will remain in the
"up"
position until the
advance lever
stroke
is
comple
ted.
Depth-of-field preview button
CD
This
control allows you
to
get a visual impression of the
various parts of the scene in front of and behind the
main
subject which will appear sharp
in the final
photograph
(see the
photos
on the next page.
)
To
operate this control,
push the butlon while
looking
through
the
viewfinder. If
the
lens is
set
to anything other than maximum aperture,
the
image on the focusing screen will g ive you an indi-
cation of exactly
what will be in
focus in the final photo.
The image
progressively
gets
darker
as the lens
aperture
gets smaller.
25