Canon EOS RP Mirrorless Camera - Manual (Page 212)

212
Selecting the Metering Mode
o By default, the camera will set the exposure as follows.
With [
q
] (Evaluative metering), holding down the shutter button halfway will
lock the exposure setting (AE lock) after focus is achieved with One-Shot AF.
In the [
w
] (Partial metering), [
r
] (Spot metering), and [
e
] (Center-weighted
average metering) modes, the exposure is set at the moment the picture is
taken. (Pressing the shutter button halfway does not lock the exposure.)
o With [
8
C.Fn I-7: AE lock meter. mode after focus] , you can set whether or
not to lock the exposure (AE lock) when focus is achieved with One-Shot AF
( = 529).