Greetings friends. While I am commenting on your uploads, I am temporarily out of commission after switching from Windows to Mac. I bought the big 5K 27" iMac specifically for photography. Oh, what have I done? I was expecting a learning curve and I'm rather well versed in computer stuff, but this is crazy. I transferred my images that were backed up on an external drive and they all appear in Apple's Photos, though I can't access them with any of the Adobe and other editing programs. I've been searching for days to find a solution, though no luck yet. I'd appreciate any help or suggestions you might have.