Canon EOS R50 Mirrorless Camera (White) - Manual (Page 197)

Note
AE lock is not possible with bulb exposures.
Effect of AE Lock
Metering Mode
Selection
AF Point Selection
Automatic Selection Manual Selection
Exposure centered on the AF point in
focus is locked. Exposure centered on the selected AF
point is locked.
Center-weighted exposure is locked.
* Center-weighted exposure is locked when [ ] is set with the camera configured for manual
focusing ( ).
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