In other words, they're completely different. If you can get away
with the barrel distortion from a fisheye, you'll tend to get better
results than trying to defish it all the time.
Not in my experience.
Of course it's subjective on what an individual likes. I guess
what I was trying to say is for a "mild" fisheye (e.g. Zenitar on APS
sensor), the loss of image content in the corner and the resulting stretch
on the edges may or may not be worth "defishing." YMMV, to each their
own.
One other intersting thing (and the main reason I got the Zenitar)
is for stitching panoramas. The panotools *already* correct for lens
distortions, so it takes less shots to get more panorama with a fisheye.
Whether it be a little or a lot of barrel distortion, it doesn't matter
much to the software. It maps everything to an absolute reference frame
anyway.
-Cory
--
*************************************************************************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
*************************************************************************
