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Discussions @ Nikonians
Subject: "Smoke test - 1st attempt at 360 degrees (wide image)"
"Smoke test - 1st attempt at 360 degrees (wide image)"
I
wanted to verify that I had "accurately" determined the correct
rotation point for my 12-24mm f/4G ED-IF AF-S DX Zoom-Nikkor at 12mm. So I performed a rather aggressive test, a 360 degree panorama of my living room. Eight shots in horizontal orientation. Assembled in Photoshop with PTRemap performed on each shot, Automate/Photomerge..., rotated, cropped, and resized. The image only accumulated a 1.015 degree rotation. My PTRemap values were slightly imperfect. If I had used more than eight images I would have lost less height. If I had used a diffuser on the flash the lighting would have been more even. Obviously vertical would have been better.
I think I nailed the rotation point.
What else can you guys with more experience suggest?
1. "RE: Smoke test - 1st attempt at 360 degrees (wide image"
In response to message #0
I changed the image the initial post was using. It was brain-dead, shot at 18mm not 12mm. In the second attempt I used the flash on manual with diffuser for more even lighting. I also did a PTLens before PTRemap. Parameters aren't perfect, at this close a distance every imperfection shows. If I can get this right, landscapes should be a piece of cake; right?
3. "RE: Smoke test - 1st attempt at 360 degrees (wide image"
In response to message #2
Ernesto,
The sun was setting but I had to run out and try a 360 degree landscape. The setting sun made exposures difficult, and I managed to catch my own shadow; but this is promising for an early attempt.
4. "RE: Smoke test - 1st attempt at 360 degrees (wide image"
In response to message #3
Bill,
Backlit
panos are more challenging than the average frontlit scene, again very
nice job. I do see a slight change in sky tone in the middle-right
side. How are you assembling? You can correct this in Photoshop if your
pano is in layers by adjusting levels for the mismatched tile. You can
also blend it with a layer mask and a brush set to about 20% opacity.
Let me know if you would like more complete instructions and I would be glad to e-mail them to you.
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IMAGE MAKING & SHOOTING ISSUES FORUMS 
Seriously, excellent results, Bill. 