On 29/06/2018 01:09, RichA wrote:
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People should consider looking elsewhere than just PS. Helicon is unsung and a great stacking program. While a few years back I watched utter crap being produced by stitching in Photoshop, a program out of the University of British Columbia produced fantastic, seamless panoramas and collages.

Commercially available as Autopano Pro - very good indeed!

http://www.kolor.com/autopano/

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Cheers,
David
Web: http://www.satsignal.eu