So I went out and shot some nighttime photos of San Francisco a few nights 
ago, and was going to stitch them together tonight.  I forgot I had my K10D 
set to MTF, and so my photos (all shot with the DA 50-200) have too much 
vignetting to stitch properly.

Anyone want to venture a guess as to an aperture setting for that lens that 
would eliminate vignetting?  I want to use it for my panos instead of my 100 
or 300mm lenses, but I can't stitch photos properly unless there's an even 
tone across the image.

Also, anyone know if there's an upper limit to the dimensions of a PSD file? 
I was trying to save my big stitch, but could only save in tiff or RAW 
formats, for some reason.

Thanks,
John

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http://www.cafepress.com/neovenatorphoto 



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