Mirror lockup – Nikon f2 User Manual
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MIRROR LOCKUP
The reflex mirror must be locked in the up position
when using either the Fisheye-Nikkor 6mm f/5.6 or the
OP Fisheye-Nikkor 10mm f/5.6 lenses, since their rear
elements protrude into the camera body and interfere
with mirror movement. Locking-up the mirror is also
necessary when shooting with a motor drive unit at its
top speed setting. To lock up the mirror, depress and
hold the depth-of-field button and turn the mirror lock
up lever downward until the white dot is aligned with
the white index line. The mirror will remain in the up
position until the lever is returned to the normal posi
tion.
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