3 Custom Function SettingsN
C.Fn III -6
Mirror lockup
0: Disable 1: Enable Prevents camera vibrations caused by the reflex mirror action which can disturb shooting with super telephoto lenses or close-up (macro) shooting. See page 101 for the mirror lockup procedure.
C.Fn III -7
AF point area expansion
0: Disable 1: Enable When you select AI Servo AF and the center AF point, the six Assist AF points (p.80) will also function. Seven AF points will track the subject. This is effective for subjects that move erratically, making it difficult for only the center AF point to track it.
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