After studying all of your replies, late last night I bit the bullet
and purchased the OSX PTgui. Following Blakes workflow with the
image series I already had taken and had not been able to
It...Just...Worked. No stitching errors, no run-time errors, no
nothing. It just worked perfectly the first time.
Thank you all so very much. <sigh> to think of the time I wasted
trying to figure it out on my own.
Special thanks to Blake for the PTgui workflow and dmg & Alex for the
pointer to lens calibration and other hints.
Y'all are great.
"In every World Wide Panorama Event, there comes a certain point when
8:00 AM is late at night rather than early in the morning..."