Canon EOS RP Mirrorless Camera - Manual (Page 544)

544
Custom Function Settings
C.Fn III-7: Release shutter without lens
You can specify whether shooting still photos or movies is possible without
a lens attached to the camera.
z
0: Disable
z
1: Enable
C.Fn III-8: Retract lens on power off
You can set whether to retract gear-type STM lenses (such as EF40mm
f/2.8 STM) automatically when the camera’s power switch is set to <
2
>.
z
0: Enable
z
1: Disable
o With auto power off, the lens will not retract regardless of the setting.
o Before detaching the lens, make sure that it is retracted.
o When [0: Enable] is set, this function takes effect regardless of the lens’s
focus mode switch setting (AF or MF).