3
Custom Function Setting Items
N
398
C.Fn-15
Retract lens on power off
This is the setting for the lens retraction mechanism when a gear-
driven STM lens (such as EF40mm f/2.8 STM) is attached to the
camera. You can set it to retract the extended lens automatically when
the camera’s power switch is set to <
2
>.
0: Enable
1: Disable
With auto power off, the lens will not retract regardless of the setting.
Before detaching the lens, make sure that it is retracted.
With setting 0, this function takes effect regardless of the lens’s focus mode
switch setting (AF or MF).