Mirror Lockup - Canon EOS REBEL T8i Advanced User's Manual

Mirror Lockup

You can use the mirror lockup function to prevent the disturbing mechanical vibrations
(mirror shock) when shooting with super telephoto lenses or shooting close-ups (macro
photography).
1.
Configure the mirror lockup setting.
2.
Focus on the subject, then press the shutter button completely.
3.
Press the shutter button completely again.
Set [10: Mirror lockup] in [ : Custom Functions(C.Fn)] to [1:Enable]
( ).
The mirror will swing up.
The picture is taken and the mirror goes back down.
After taking the picture, set [Mirror lockup] to [0:Disable].
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