Instance Property


The capture device’s focus mode.


@property(nonatomic) AVCaptureFocusMode focusMode;


Before changing the value of this property, you must call lockForConfiguration: to acquire exclusive access to the device’s configuration properties. Otherwise, setting the value of this property raises an exception. When you finish configuring the device, call unlockForConfiguration to release the lock and allow other devices to configure the settings.

You can observe changes to the value of this property using Key-value observing.

See AVCaptureFocusMode for possible values.

See Also

Managing Focus Settings

- isFocusModeSupported:

Returns a Boolean value that indicates whether the device supports the given focus mode.


The point of interest for focusing.


Indicates whether the device supports a point of interest for focus.


Indicates whether the device is currently adjusting its focus setting.


A Boolean value that determines whether the device has smooth autofocus enabled.


A Boolean value that indicates whether the device supports smooth autofocus.


A value controlling the allowable range for automatic focusing.


A Boolean value that indicates whether the device supports focus range restrictions.


Constants to specify the focus mode of a capture device.


Constants to specify the autofocus range of a capture device.

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