Coin Photography: Focus Stacking with an iPhone

A challenge I have had with cataloguing my coin collection is how to best photograph my coins. For the longest time I used a digital 'point and shoot' camera that I would take with my on vacations, since it had a higher MegaPixel count than my phone. I recently upgraded to an iPhone 15 Pro, which supposedly had a 48 MegaPixel camera. And yet, coin photography with the iPhone camera still wasn't great. Old Photo Set-Up The difficulty with my phone photos has been controlling the focus, as usually one part of the coin would be in focus, but the other parts out of focus. Focus Stacking (where multiple images are taken, at different focal lengths, then merged together) seemed like an ideal solution. I had been aware of Focus Stacking for some time, but could never find a good program on my phone to use; and when I had found a good program, I had no way to merge the images, unless I tried to do it manually. Well, after leaving the matter for some time, I decided to do some diggi...