@Peter wrote:
At least the raw file is modified. I checked sha256 checksum for a raw file before, after and when I had reset it again to the same value.
I know Nikon has corrupted its raw files when transferring the files from the camera to the computer so modifying the raw file is a bad idea. Exiftool creater Phil Harvey has even created a script for those corrupted Nikon files.
I don't know if EOS Utility touches the raw files when importing raw files. I only have EOS Utility in a Virtual Box and struggle to import from camera. Anyone who wants to see if Canon changes anything in the raw file during import can compare sha256 checksum before importing a file and after. There are online tools for sha256 checksum if you don't know how to do it in CMD/Teeminal.
The RAW file is modified in the sense that the edited recipe data is added to the file. But the original image data is not affected because any edits can be reset to the starting point. Files that have been edited in DPP can be opened in Lightroom and the image is original. None of the DPP edits show. Same holds true for JPEG.
John Hoffman
Conway, NH
1D X Mark III, M200, Many lenses, Pixma PRO-100, Pixma TR8620a, Lr Classic
