The latest version of PTGUI does a better job of stitching fisheye photos than the previous versions. Until I revisited some old sets I took a couple of years ago, I didn't realize how much better it is. I redid some sets that I had spent hours on trying to get good results and still not getting a decent nadir without resorting to Photoshop. This time, most of them aligned with almost no fuss! I only had to resort to Photoshop in a few cases and even those were much less work (smaller fixes). Great work PTGUI!