Unfortunately, I wasn’t so smart in the past, and I imported many RAW and RAW+JPEG photos to Photos—and I don’t need the RAW versions at all. Some are pure RAW, and these I can easily find and fix (export, convert to JPEG, re-import). Unfortunately, most are in the RAW+JPEG format, and that’s a problem: Once such photos are in Photos, there’s absolutely no way to find them—which means there’s no easy way to remove them.
My friend Rob wants to get rid of raw files in his Apple Phots library, and this isn’t easy. I’m surprised that it’s so hard to find raw files; as he explains, when you use a jpeg + raw pair of photos, the Photos app only “sees” the one you’ve chosen to edit.
He found a sort-of solution to his problem, but one that won’t work for most people. I’d love an option to remove the photo that isn’t selected for editing in Photos.
Source: Photos makes it very difficult to find RAW+JPEG photos | The Robservatory