autoISO
A special value that may be passed as the ISO parameter of a device’s setExposureModeCustom... methods to allow the system’s auto-exposure system to manage the gain value.
Declaration
class let autoISO: FloatDiscussion
This value may be passed to setExposureModeCustom(duration:iso:completionHandler:) or setExposureModeCustom(lensAperture:duration:iso:completionHandler:) to enable “priority” modes, where some parameters are locked to specified values (given “priority”), whereas the ones specified as “auto” will be continually adjusted by the system to maintain image brightness.
See Also
Configuring exposure manually
setExposureModeCustom(duration:iso:completionHandler:)setExposureModeCustom(lensAperture:duration:iso:completionHandler:)autoExposureDurationautoLensAperturecurrentLensApertureexposureDurationisolensApertureactiveMaxExposureDurationautomaticallyAdjustsExposureDurationautomaticallyAdjustsISOautomaticallyAdjustsLensApertureautoExposureLensApertureRateLimit