I started with two photos that looked like they could easily be merged in Photoshop. The Photomerge- Auto setting would not work. I must have not rotated my camera as carefully as I had thought. I tried the individual settings, all but one produce unexceptable results. Only with the spherical setting was I able to get something I could work with. It was difficult and I kept asking myself it it was worth all the time. It took over two hours, but I finally had an image I liked. The top half has a fisheye look to it that I initially did not like, but it grew on me