Through an unknown disk error, (copying files from an old folder to a new drive) I've just discovered that I'm missing over 4200 photos (originally, Nikon RAW (NEF) files) These are unrecoverable, since I didn't realize I was missing this segment of my catalog, until after I erased the old version.
I still have high-res,quality preview images available in the catalog. So... Is there a way to convert these saved previews in some common image format? (i.e. TIFF would be best, but I'd settle for JPG.)
Thank you in advance for any help you can provide! (Using version 11.1 on a 27-inch iMac, running Mac OS version 11.8.2 "Big Sur")