Here's one from Sedona with an interesting issue -- CS4 could not render it! I did the B&W conversions in C1 -- and in fact ALL processing on these files was done in C1 and nothing in CS4 -- pulled all 6 frames into CS4 for the merge, and got an error that there was not a pano. Then tried it a second time and it generated the stitch, but without the blend step -- IOW it just arranged them then spit it out as finished.
Long story short, I had heard good things about AutoPano Pro, so I downloaded the demo and ran it. First off, AP found the pano right away, and asked if I wanted to sticth it. I said yes and picked all the high quality options. AP went to work -- and here there is a big difference over CS4, AP was using all my cores at near capacity and it took about 15 minutes to render this pano, where CS4 usually takes maybe 3 or 4 with an image this size. However, the result is impressive: Main thing I note is there is not the usual geometric distortions you get with long panos in CS4; horizon lines are as captured with no waves or wiggles and no other obvious geometric distortions from transforms to mate seam lines are visible. Anyway, looks like if you want to make really big stitches using large, 16 bit monotone files, you need a better piece of software than CS4. The final file is about 26000 pixels wide and about 1G in size, and was made from 6 captures on my P45+ using the 120 Macro, each exposure were 1 second at f22 at ISO 100. I have reduced it to 2400 pixels wide for display here (using CS4), or about 1/10th scale, click on the 900 pix image below to see the 2400 px version:
Cheers,
