wwp@yahoogroups.com:
Late submission - not needed! I made it! - thanks to all
Norman Peters 2006-Jul-04 02:47:00
Hi - I posted early yesterday (after a 3 am finish) seeking help with
stitching in PTGUI for images shot with a Canon 15mm fisheye, and
hoping for a late submission. I fixed it all and made it with just an
hour to spare to the deadline. Here is the washup....
Here is what occurred:
Many offers of help were made - thanks to you all, you know who you
are.
I had auto-generated control points in PTGUI - this was not needed
and was a cause of the stitch problems. I redid the pano from the
start, using only a few control points and this worked well.
I posted that I have a Canon 5D - this was an error (I was tired
after just 3 hours sleep, and must have been thinking wishfully!). I
actually have a Canon 10D, and it seems that PTGUI and the Canon auto-
orientation feature don't get on well. Advice recieved (thanks Peter
N!) shows that this should be disabled.
I reduced the complexity of the stitch by using only 2 rows of 10
shots each and didn't need a central row, as there was just enough
overlap. I didn't need a zenith (although I ended up using one), and
I did graft in a nadir (shakey from slow shutter speed but OK
nevertheless).
Summary for Canon 10D and Canon 15 mm fisheye for good results:
. turn off auto orientation;
. 2 rows of 10 shots;
. 45 degrees up, 45 degrees down;
. zenith not actually needed, nadir used to hide tripod;
. don't autogenerate control points.
Result - my best one yet - hope you agree!
Many thanks to all who contributed.
Norm, Canberra, Australia.