Choose whether exposure locks when the shutter-release button is pressed.
| Option | Description | |
|---|---|---|
| O | [On (half press)] | Pressing the shutter-release button halfway locks exposure. |
| P | [On (burst mode)] | Exposure only locks while the shutter-release button is pressed all the way down. |
| [Off] | Pressing the shutter-release button does not lock exposure. | |