Backup mechanical release lever – Nikon Camera F3AF User Manual
Page 66
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Backup Mechanical Release Lever ®
This lever is provided as an alternative method of releasing the
shutter in case the camera's batteries become weak or com
pletely exhausted. To operate the lever, first use your fingernail
to pull it down to the ready position. Then push it down to trip
the shutter. The shutter operates at a mechanical speed of
approx. 1/60 sec. at any setting on the shutter speed dial, except
T. At T, push down the backup mechanical release lever with
the power switch @ off.
Caution:
If you advance the film while holding down the backup mechan-
icat release lever, the shutter will fire immediately at the completion of
the film advance stroke, thus wasting a frame. Also, if you fail to advance
the film completely and then use the lever to trip the shutter, the mirror
®
will remain in the "up" position; when the additional stroke is made to
complete film winding, the shutter will lire, also wasting a frame.