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Mirror lockup is enabled with C.Fn-12 [Mirror lockup] set to [1: Enable]
(p.154). The mirror can be swung up separately from when the
exposure is made. This prevents mirror vibrations which may blur the
image during close-ups or when a super telephoto lens is used. Set
Custom Functions with [c Custom Functions (C.Fn)].
1
Press the shutter button
completely.
X The mirror will swing up.
2
Again press the shutter button
completely.
X The picture is taken and the mirror
goes back down.
Mirror LockupN
In very bright light such as at the beach or ski area on a sunny day, take
the picture promptly after mirror lockup.
During mirror lockup, do not point the camera lens at the sun. The sun’s
heat can scorch and damage the shutter curtains.
If you use bulb exposures, the self-timer, and mirror lockup in
combination, keep pressing the shutter button completely (2 sec. self-
timer + bulb exposure time). During the self-timer countdown, if you let
go of the shutter button, there will be a shutter-release sound. This is not
the shutter release (no picture is taken).
During mirror lockup, the drive mode will be single shooting regardless of
the current drive mode (single or continuous).
If you use the self-timer and mirror lockup, the shot will be taken 2 sec.
after the mirror goes up when you press the shutter button completely.
The mirror locks up, and after 30 seconds, it will go back down
automatically. Pressing the shutter button completely again locks up the
mirror again.
For mirror lockup shots, using Remote Switch RS-80N3 or Timer Remote
Controller TC-80N3 (both optional) is recommended.