88
Mirror Lockup
Mirror lock is enabled with C.Fn-3-1 (→124). This function raises the mirror and exposes the
picture, in separate operations. It is useful for close-up shots or when using a super telephoto
lens, where the mirror shock could affect the picture.
● When using mirror lockup, we recommend you use the Remote Switch RS-80N3 (sold
separately).
1
Press the shutter button down
fully.
The mirror is raised.
● The mirror automatically returns to the
down position approximately 30 seconds
after it is raised. Be sure to take the picture
within 30 seconds.
2
Press the shutter button down
fully again.
● The picture is taken, and the mirror goes
back down.
● To take the picture again, repeat the
procedure from step 1.
● During mirror lockup, the drive mode (→67) is single-frame shooting regardless
of the current setting.
● If you use mirror lockup with the self-timer, pressing the shutter button down fully
the first time raises and locks the mirror, then releases the shutter 2 seconds later.
● During mirror lockup, do not point the camera at the sun. The sun’s heat can
scorch and damage the shutter curtains.
● If you use mirror lockup with the self-timer for a bulb exposure, there will be a
shutter release sound when you release the shutter button during self-timer
operation. This is not the sound of the shutter release.
