This is up for comments about how to eliminate vignetting (?)
Paul Heckbert (December 27, 2009, 03:44PM
Reducing the aperture, as mrpiv suggested, should
help. You could also increase the overlap.
Typically the Gigapan Imager shoots with 30%-40%
overlap. If you do "Gigapan Setup" you
could reduce the field of view and thereby get
overlap of 50% or more. That would help, also. The
disadvantage is that you'll shoot more
pictures to capture the same panorama, however.
David Pivin (December 27, 2009, 09:49AM
Forest, First thing I noticed was that you shot at
f/4.3 on this pano. Vignetting will be reduced
significantly by shooting at f/8, which I believe
is the maximum available on the SX120. I noticed
you had used f/8 on some of your previous panos
with an SX110 with no vignetting problems.
Hopefully you have the opportunity to re-shoot.
But since you have already shot this, you may be
able to reduce the vignetting effects a bit by
selecting the option to use a larger blending
region and re-stitch. I am currently using an
SX110 which only differs in Mpx, 9.1 vs. 10
compared to the SX120 and I get good results and
always try to shoot f/8. Previously I had used an
SD400 which had vignetting problems even at f/10.
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