Mirror Lockup; Eyepiece Shutter - Canon EOS 1D Mark II N Instruction Manual

Mirror Lockup

Mirror lockup is enabled with C.Fn-12. (p.165) 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
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.
Bulb exposures cannot be used with the self-timer. 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 (
override the current drive mode (single or continuous).
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.

Eyepiece Shutter

1
Press the shutter button
completely.
The mirror will lock in the up position.
2
Again press the shutter button
completely.
The picture is taken and the mirror
goes back down.
If you take a picture without looking
through the viewfinder, stray light may
enter the eyepiece and affect the
exposure. To prevent this, turn the
eyepiece shutter lever as shown by the
arrow to shutter the eyepiece.
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