On 9 Nov 98, at 20:47, Jan Steinman wrote:
> >> An example is <http://www.bytesmiths.com/photos/CoopersSpurPanorama.jpg>.
> >> This was shot with the 21/3.5 in portrait, with 13 separate shots, scanned
> >> in, then stitched together using PhotoVista...
> >
> >I'm a little confused by this shot - each shot should be about 60 deg.
> >coverage, but it appears you've only used a narrow vertical slice of each
> >shot,
> >for a total panorama of ~ 150 - 180 degrees (? Just a guess) Was there a
> >reason for using so many samples?...
>
> It's a 360. PhotoVista recommends an overlap of about 50 0.000000or best
> stitching. They recommend 12 shots for a 21mm lens in portrait -- I came up
> with 13 because the Bogen 410 pan head I was using didn't easily come up
> with 12 shots. (There are 200 turns per 360 degrees, rather than 180 --
> STUPID!)
Wow, I guess I need to visit this spot! A relatively low distortion 360 is a
little
hard for the old mind to comprehend... I have to keep staring at it trying to
figure out how it would look to the eye...
> >Also, the centre two stripes containing the sun seem to lack contrast and
> >definition in the rocks. Is this flare related.
>
> Yup. That one shot was dead-on into the sun. When I set up, I arranged it
> so only one shot would have direct sun, but there was no avoiding it.
>
> >Did you use the same aperture for all shots?
>
> Yes, it was f16, set to hyperfocus. I took 8 spots on neutral-looking rock
> in all directions, and memorized. I think it was 1/125th.
>
> BTW: that was my first ever panorama. I've gotten much better at it!
Feel free to post some more - the results are intriguing... :-)
Shawn & Janis Wright
swright@xxxxxxxxx
http://Zuiko.sls.bc.ca/~swright
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