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The camera’s mechanical shake caused by the reflex mirror action can
affect images taken with a super telephoto lens or close-up (macro)
lens. In such cases, mirror lockup is effective. Mirror lockup is enabled
by selecting [7 Custom Functions (C.Fn)] and setting [Mirror
lockup] (p.157) to [1: Enable].
Press the shutter button completely to
lockup the reflex mirror.
Then press the shutter button completely
again to take the picture. The reflex
mirror will then go back down.
Using the self-timer <l> with mirror lockup.
When you press the shutter button completely, the mirror locks up,
then the picture is taken 2 sec. later.
Remote control shooting.
Since you do not touch the camera when the picture is taken, remote
control shooting together with mirror lockup can further prevent
camera shake. With Remote Controller RC-5, pressing the transmit
button locks up the mirror before the shot is taken 2 sec. later. With
RC-1, set it to 2-sec. delay, then shoot.
Preventing Camera ShakeN
Shooting Tips
Do not point the camera toward 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 (self-timer
delay time + bulb exposure time). If you let go of the shutter button
during the self-timer countdown, there will be a shutter-release sound.
This is not the actual shutter release (no picture is taken).
Even if <i> (Continuous shooting) has been set, single shooting will
still take effect.
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.