Do you get any better results when you change the projection or check/uncheck geometric distortion correction?
Thanks for the info Kirk, I eliminated one of the images and turned on Geometric distortion correction and it certainly worked a lot better!
here's a preview. not the best image in the world and it's only a quick BW conversion (obvious halos around building etc) but what an amazing place! "Ciudad De Las Artes Y Las Ciencias" or the "City of Arts and Sciences" in Vanencia Spain.
and here's another. "El Museo do las Ciencias Principe Filipe"
There is a lot of distortion on this one, especially in the bridge area of the photo. I've processed it a few different ways, but this is the best I can achieve. Some local warping/liquefy might help but I'm not sure it's worth the effort in this case. The sky is a little funny also.
good images to test however - a lot of clean architectural lines to match up.
Ellis, Thanks for the info on PTGUI - I'm going to check it out at the weekend and see how it works! I might be back with any problems if that's ok?
Cheers for the help!