Global Variable

AVCaptureExposureTargetBiasCurrent

A special constant representing the current exposure bias value.

Declaration

const float AVCaptureExposureTargetBiasCurrent;

Discussion

Pass this value to setExposureTargetBias:completionHandler: to lock exposure bias to its current value (that is, disable autoexposure).

See Also

Managing Image Exposure

exposureDuration

The length of time over which exposure takes place.

- setExposureModeCustomWithDuration:ISO:completionHandler:

Locks the exposure duration and ISO at the specified values.

exposureTargetOffset

The metered exposure level's offset from the target exposure value, in EV units.

exposureTargetBias

Bias applied to the target exposure value, in EV units.

minExposureTargetBias

The minimum supported exposure bias, in EV units.

maxExposureTargetBias

The maximum supported exposure bias, in EV units.

activeMaxExposureDuration

The maximum exposure duration, in seconds, defined in the auto-exposure algorithm.

- setExposureTargetBias:completionHandler:

Sets the bias to be applied to the target exposure value.

AVCaptureExposureDurationCurrent

A special constant representing the current exposure duration setting.