Sony ILCA-99M2 Manual page 148

Select the destination.
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[129] Shooting Face detection
Face Registration (Delete)
Deletes a registered face.
MENU →
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If you select [Delete All], you can delete all registered faces.
Note
Even if you execute [Delete], the data for registered face will remain in the product. To delete the
data for registered faces from the product, select [Delete All].
[130] Shooting Using the flash
Using flash (sold separately)
In dark environments, use the flash to light up the subject while shooting. Also use the flash to
prevent camera-shake.
For details on the flash, refer to the instruction manual for the flash.
Attach the flash (sold separately) to the product.
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(Camera Settings1) → [Face Registration] → [Delete].