I'm a novice, and don't have a detailed understanding of the technical terms, but I've scanned hundreds of 35mm and medium format negatives to get the best quality RAW files at certain presets which were set up for me by others, using Nikon CoolScan and Epson V500, V550 flatbeds.
Some negatives were accidentally scanned with the film upside down in the scanner, giving me a flipped (mirrored) image.
Are these photos missing any quality (channels, color, detail etc) because of being scanned upside down, and they must be rescanned for the best possible image? Or can I just flip these photos in Photoshop and they will have all the quality they would have had, had I scanned them right side up?
Additionally, I have the same situation with scans done on a flatbed as drafts, as opposed to full RAW scans.