A Boolean value indicating whether this photo object contains RAW format data.
Mac Catalyst 13.0+Beta
When you request capture in RAW format, the capture output calls your delegate's captureOutput:didFinishProcessingPhoto:error: method one or more times, delivering both the RAW photo data and (if requested) equivalent processed photos. Use this property to distinguish between the RAW and processed results from the same capture.
The uncompressed or RAW image sample buffer for the photo, if requested.
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