Issue with Photomerge in CS5

[cls]

Hi, in the upper stitch, it's obviuos that the images are not equally exposed/white balanced. I've had similar problems myself and have learned a few error sources by experience. What's required for stitching is basically constant lighting and fixed camera settings (exposure time, aperture, ISO, WB).

Did you use manual WB setting? If you shoot RAW this can of course be easily adjusted in post.

When you say all images have the same exposure settings, I suppose this means you have shot in manual mode. Did you also remember to set ISO manually?

If exposure settings in the camarea are the same for all images, it must be the actual lighting that differs between the photos. Did you use any flash, or just the window light? If shot on a day with failrly rapidly moving clouds, it doesn't take much to get quite different exposure from one minute to the other. (If you used flash, it could be that the flash output isn't constant.)

If these things are already checked I'm afraid I can't be of any help.

(Edit: Forgot to mention that when I've had issuses with photomerge it hasn't been Adobes fault - it has been me messing with the exposures. There may be some photomerge issue I don't know, but I've stitched up to 10-15 images in photomerge on a modestly speced computer without problems.)