Sony ILCE-1 a1 Help Manual page 67

Help Guide
Interchangeable Lens Digital Camera
ILCE-1
α1
Using the AF-ON button
You can use the AF-ON button to adjust the focus without pressing the shutter button halfway down ([AF On] function) in
the following cases:
When you want to focus at a specific shooting distance predicting the position of the subject.
When you want to focus and release the shutter separately.
Related Topic
AF On
5-025-537-11(1) Copyright 2021 Sony Corporation
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