Documentation for this section has not yet been entered.
Desired distance to plane of sharpest focus, measured from frontmost surface of the lens.
Should be zero for fixed-focus cameras
Units: See CameraCharacteristics.LensInfoFocusDistanceCalibration for details
Range of valid values:
>= 0
Optional - This value may be null on some devices.
Full capability - Present on all camera devices that report being CameraMetadata.INFO_SUPPORTED_HARDWARE_LEVEL_FULL devices in the CameraCharacteristics.InfoSupportedHardwareLevel key