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# kCMFormatDescriptionExtension_CameraCalibrationDataLensCollection

```
let kCMFormatDescriptionExtension_CameraCalibrationDataLensCollection: CFString
```

## Discussion

\abstract Specifies intrinsic and extrinsic parameters for single or multiple lenses.
\discussion The property value is an array of dictionaries describing the camera calibration data for each lens. The camera calibration data includes intrinsics and extrinics with other parameters.
For a stereoscopic camera system, the left and right lens signaling can be done with the kCMFormatDescriptionCameraCalibration_LensRole key and its value.
The following keys are required in each kCMFormatDescriptionExtension_CameraCalibrationDataLensCollection dictionary.
kCMFormatDescriptionCameraCalibration_LensAlgorithmKind
kCMFormatDescriptionCameraCalibration_LensDomain
kCMFormatDescriptionCameraCalibration_LensIdentifier
kCMFormatDescriptionCameraCalibration_LensRole
kCMFormatDescriptionCameraCalibration_LensDistortions
kCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialX
kCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialY
kCMFormatDescriptionCameraCalibration_RadialAngleLimit
kCMFormatDescriptionCameraCalibration_IntrinsicMatrix
kCMFormatDescriptionCameraCalibration_IntrinsicMatrixProjectionOffset
kCMFormatDescriptionCameraCalibration_IntrinsicMatrixReferenceDimensions
kCMFormatDescriptionCameraCalibration_ExtrinsicOriginSource

---

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