Panasonic Lumix G100 Mirrorless Camera with 12-32mm Lens - Manual (Page 210)

210
8. Brightness (Exposure)/Coloring/Picture effect
Locking Focus and Exposure (AF/AE
Lock)
Lock the focus and exposure in advance to take pictures with the same
focus and exposure settings while changing the composition.
This is useful when you want to bring an edge of the screen into focus or
there is a backlight, for example.
1
Register [AF/AE LOCK] to the Fn button. (

292 )
• These cannot be registered to [Fn5] to [Fn9].
2
Lock focus and exposure.
●
Press and hold the Fn button.
●
If focus is locked, then the AF lock
icon will be displayed.
●
If exposure is locked, then the AE
lock icon will be displayed.
3
Hold the Fn button to decide on the composition and
then perform recording.
●
Press the shutter button fully.