vrthree
Posts: 31
Location: Leeds, United Kingdom
Registered: 17 Aug 2005
|
Suspended Ceiling
Posted: 14 May 2008 at 20:12 GMT
|
reply
|
Any one got any hints or tricks on how to stitch panos with suspended ceiling? I am using a 10.5mm lens (6 images + zenith) and PTGui to stitch.
Many thanks
|
|
alert moderator
|
|
Hans Nyberg
Posts: 701
Location: Denmark
Registered: 28 Aug 2005
|
Re: Suspended Ceiling
Posted: 14 May 2008 at 20:40 GMT
|
reply
|
Why would that be any special problem?
Hans
|
|
alert moderator
|
|
mediavets
Posts: 216
Location: Isleham, Cambs., United Kingdom
Registered: 8 Feb 2008
|
Re: Suspended Ceiling
Posted: 14 May 2008 at 22:02 GMT
|
reply
|
vrthree said: Any one got any hints or tricks on how to stitch panos with suspended ceiling? I am using a 10.5mm lens (6 images + zenith) and PTGui to stitch.
Many thanks
If the problem is that the zenith image lacks features to place control points then you might try a different shooting technique.
As suggested by Hans N - when using my DX sensor DSLR with the Nikkor 10.5mm and NN5 pano head, I shoot 6-around at about -10 degrees and 1 up at +60-65 degrees. That give sgood zenitn coverage and also usually provides a good link between the main row and the 'zenith' shot - leaving just a small hole at the nadir.
Andrew
|
|
alert moderator
|
|
Henri
Posts: 41
Location: Tilburg, Netherlands
Registered: 30 Oct 2007
|
Re: Suspended Ceiling
Posted: 14 May 2008 at 22:16 GMT
|
reply
|
I use the same technic with my pentax 10-17 fisheye. I shoot 5 around at a -10 degree angle and 1 up at about a 60 degree angle.
But on advise of John H. I now also take a nadir shot, since this helps getting a better stitch in ptgui.
|
|
alert moderator
|
|
vrthree
Posts: 31
Location: Leeds, United Kingdom
Registered: 17 Aug 2005
|
Re: Suspended Ceiling
Posted: 15 May 2008 at 9:05 GMT
|
reply
|
|
Why would you only take one image at 60-65 degrees? What does this achieve?
|
|
alert moderator
|
|
mediavets
Posts: 216
Location: Isleham, Cambs., United Kingdom
Registered: 8 Feb 2008
|
Re: Suspended Ceiling
Posted: 15 May 2008 at 9:52 GMT
updated: 15 May 2008 at 9:56 GMT
|
reply
|
vrthree said: Why would you only take one image at 60-65 degrees? What does this achieve?
It is enough to give good zenith coverage and (at this angle rather than +90 degrees) is more likely to provide a link to the main row to ensure easy stitching in a situation where a +90 degrees zenith shot might be featureless (for example, a plain blue sky or a white ceiling).
Andrew
|
|
alert moderator
|
|
