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  6. Focus Mode (Live View Photography)

Digital SLR Camera Basics

Focus Mode (Live View Photography)

Single-Servo AF (AF-S)

In single-servo AF (AF-S), the camera focuses when the shutter-release button is pressed halfway, and focus locks while the shutter-release button is kept in this position. When the shutter-release button is pressed halfway, the camera focuses on the subject in the selected focus area using autofocus. The same is true in movie recording, although in this case until the shutter-release button is pressed halfway the camera remains focused at the distance selected at the start of recording.

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  • Note: Artist's conception

Full-Time Servo AF (AF-F)

In full-time servo AF (AF-F), the camera continuously adjusts focus in response to changes in the distance to the subject in the selected focus area until the shutter-release button is pressed halfway to lock focus. During movie recording, the camera continuously maintains focus on the subject in the focus area.

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  • Note: Artist's conception

Manual Focus (MF)

In this mode, the photographer focuses manually. In live view, the photographer can use the playback zoom in button to zoom in on the view through the lens for more precise focus.


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