I use my Nikon to take the image of both sides of a slab at jpeg-fine resolution. I crop each slab image close to the sides and save that as the original. Then I square crop the coin right to the edge; that gives me an image about twice the size I want for the quarters. Then I resize that image 50% which is the size I posted earlier in this thread. Using the Marquee Tool I circular crop the coin from the 50% image. CTRL-C, CTRL-N, CTRL-V and Save and I'm done. The key is getting a GOOD original image.