I recently returned from the Baltoro Glacier in northern Pakistan with a 360' panorama, a very small section of which is available here.
As you can tell there is a lot of 'fanning' throughout the image. Here's how I took the picture.
NN5 with sturdy Feisol tripod.
Spirit level on the hotshoe.
Canon 5DII and 50mm lens.
Shot in RAW using a remote control.
Shot in manual at 400th of a second.
No vignetting in separate images.
No auto iso
No polarizer left on by mistake.
When I process the picture in Adobe CS5 I get this 'fanning', however, when I process it in Ptgui I get other lesser issues, with Ptgui I get what I could best describe as areas of poor join. I've tried processing the pano' in three sections with a left, middle and right then joining them up later but still no improvement.
I then took three images that showed a blatant fault in Ptgui, I took these three images and processed them in CS5 and they were fine. So I must be doing something wrong with the software. Yet I've done many pano's before without this issue - though never a 360'.
I wonder if I might be over over lapping the shots as I tend to overlap 50%