• Fixed focus (CameraCharacteristics.LensInfoMinimumFocusDistance == 0), which means CaptureRequest.LensFocusDistance parameter will always be 0.
• Fixed focal length (CameraCharacteristics.LensInfoAvailableFocalLengths contains single value), which means the optical zoom is not supported.
• No ND filter (CameraCharacteristics.LensInfoAvailableFilterDensities contains only 0).
• Fixed aperture (CameraCharacteristics.LensInfoAvailableApertures contains single value).

Current lens status.

For lens parameters CaptureRequest.LensFocalLength, CaptureRequest.LensFocusDistance, CaptureRequest.LensFilterDensity and CaptureRequest.LensAperture, when changes are requested, they may take several frames to reach the requested values. This state indicates the current status of the lens parameters.

When the state is STATIONARY, the lens parameters are not changing. This could be either because the parameters are all fixed, or because the lens has had enough time to reach the most recently-requested values. If all these lens parameters are not changable for a camera device, as listed below:

Then this state will always be STATIONARY.

When the state is MOVING, it indicates that at least one of the lens parameters is changing.

Possible values:

• CameraMetadata.LENS_STATE_STATIONARY
• CameraMetadata.LENS_STATE_MOVING

Optional - This value may be null on some devices.

Limited capability - Present on all camera devices that report being at least CameraMetadata.INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED devices in the CameraCharacteristics.InfoSupportedHardwareLevel key

[Android Documentation]