Mirror Lockup - Canon EOS-1 DX Mark III Advanced User's Manual

Mirror Lockup

Mirror lockup keeps the mirror up in viewfinder shooting to reduce blur from mirror
movement. Useful when shooting close-ups (macro photography), using a super telephoto
lens, shooting at slow shutter speeds, etc.
1.
Select [
2.
Select an item.
3.
Focus on the subject, then press the shutter button completely.
: Mirror lockup].
Select [Enable] or [Enable:Mirror down w/
The mirror will swing up.
187
], then press < >.