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I have edited my RAW / DNG files in Photoshop or another application. Does PTGui recognize my changes when I use the raw files in PTGui?

April 26, 2017application changes dng edited files Photoshop ptgui raw recognize

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I have edited my RAW / DNG files in Photoshop or another application. Does PTGui recognize my changes when I use the raw files in PTGui?

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No, PTGui will load the raw files as they came straight from the camera, any modifications are ignored. In Photoshop RAW files can be edited, but the changes are written to a ‘side car’ file (with the .xmp extension) rather than to the original raw file. The settings in the side car file are specific to the algorithms used by Photoshop and cannot be used by other applications. To use the modified RAW files in PTGui, export them to 16 bit TIFF files and load those in PTGui instead. Since RAW files typically only have 12 or 14 bits per channel, the full dynamic range will be preserved by the 16 bit TIFF file, so there is no loss of quality.