Canon EOS-1Ds Instruction Manual

104

Mirror lockup is enabled with C.Fn-12. (

→p.136) This prevents mirror-caused vibrations which

may blur the image during close-ups or when a super telephoto lens is used. To set this
Custom Function, see “Setting a Custom Function” on page 132. When mirror lockup is set,
the camera operates as follows.

•

When using mirror lockup, Remote Switch RS-80N3 (optional) is recommended. (

→p.167)

s

The mirror locks up, and after 30 seconds, it will go
back down automatically. Pressing the shutter
button fully again locks up the mirror again.

s

The picture is taken and then the mirror goes back
down.

•

During mirror lockup, the drive mode will be set to single-frame shooting (

) to

override the current drive mode (single or continuous).

•

If mirror lockup is used with the self-timer, pressing the shutter button fully the first
time will lock up the mirror and release the shutter 10 seconds or 2 seconds later
(depending on the delay time selected).

•

In very bright light such as at the beach or ski ground 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 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.