gsc
Posts: 26
Location: Kutchan Hokkaido, Japan
Registered: 20 Aug 2009
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Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 3:08 GMT
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Hi There,
Anyone have any tips for stitching featureless sky zenith shots.
i.e : a pano shot on the top of a mountain peak on a cloudless blue sky day.
I am using a Nikon D700 16mm lens 360 absolute head and PTGui.
Cheers
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Guest
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Re: Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 3:17 GMT
updated: 14 Mar 2011 at 16:13 GMT
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Drag the zenith shot around in PTgui, until all parts of the image fit with the other images (watch for the shades being the same).
The blending will be problem free if you get it placed in a way that appears to your eye, to be good.
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Smooth
Posts: 3729
Location: Mount Panorama, Australia
Registered: 21 Jul 2004
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Re: Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 5:01 GMT
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Using a template of a previous good stitch using the same combination should be enough to orientate to the images into the correct position. As Trausti points out the blender will deal with the rest.
Regards, Smooth 
www.smooth360.info
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John Houghton
Posts: 3412
Location: Hitchin, United Kingdom
Registered: 17 Jan 2005
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Re: Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 8:07 GMT
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With a 360Precision Absolute head you are surely using a template for stitching, even if you don't quite manage stitching without a few control points? You therefore know the y,p,r values of the zenith quite accurately and can position it automatically without any difficulty at all.
John
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gsc
Posts: 26
Location: Kutchan Hokkaido, Japan
Registered: 20 Aug 2009
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Re: Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 8:22 GMT
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Thanks very much for the tips guys - most appreciated.
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Hans Nyberg
Posts: 2760
Location: Denmark
Registered: 28 Aug 2005
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Re: Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 8:22 GMT
updated: 5 Mar 2010 at 8:23 GMT
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As you are using an Absolute that should be no problem., Thats exactly what you use the Absolute for. You just need to make a template for it.
Just remember to take the zenith at the same clickstop always for example take 6 around and take zenith on number 6.
But with other heads just take the zenith at + 65 .
You will then have the horisont in one side for setting a couple of controlpoints.
Hans
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gsc
Posts: 26
Location: Kutchan Hokkaido, Japan
Registered: 20 Aug 2009
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Re: Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 8:27 GMT
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Actually i must admit i haven't been using a template for stitching  the head does a great job as is but think it's time to roll up my sleeves and speed up my work flow !
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Hans Nyberg
Posts: 2760
Location: Denmark
Registered: 28 Aug 2005
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Re: Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 8:55 GMT
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Template stitching today is not the same as it was a year ago.
With PTGui project settings you can create a template which can do fully automatic stitching with the batchbuilder.
And you can use any good panohead for it.
Hans
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NYCreate
Posts: 495
Location: North Yorkshire & Northern England, United Kingdom
Registered: 21 Aug 2005
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Re: Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 11:41 GMT
updated: 5 Mar 2010 at 11:41 GMT
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Depending on what size the hole was in the zenith I would just patch it in PS if its featureless. V quick and easy to do.
Regards
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Hans Nyberg
Posts: 2760
Location: Denmark
Registered: 28 Aug 2005
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Re: Featureless Blue Sky Zenith edits
Posted: 5 Mar 2010 at 15:44 GMT
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A 16mm gives you a large hole even if you shoot the 6 around at zero.
Hans
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