OM SYSTEM OM-5 Mirrorless Camera with 12-45mm f/4 PRO Lens (Silver) - Manual (Page 100)

Locking Exposure (AE Lock)
You can lock the exposure by pressing the AEL/AFL button. Use this when you want to adjust the focus
and exposure separately or when you want to shoot several images at the same exposure.
AE lock is available only when [mode1] or [mode2] is selected for [ K AEL/AFL] (P. 299) during
still photography (note, however, that when [ R AF] or [ R AF J ] is selected for AF mode, AE lock
is available only in [mode1]).
If the AEL/AFL button has been assigned a different role, you will need to assign [AEL/AFL]
to another control.
g “Assigning functions to buttons (Button Function)” (P. 167) , “Available
Roles” (P. 169)
If you press the AEL/AFL button once, the exposure is locked and u is displayed. g “Setting
Focus and Exposure with the AEL/AFL Button ( K AEL/AFL)” (P. 299)
Press the AEL/AFL button once again to release the AE Lock.
The lock will be released if you operate the mode dial, MENU button, or OK button.
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Locking Exposure (AE Lock)
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