I have the same effect on my panoramas as seen here : http://vklaffehn.vk.funpic.de/cms/index … ;Itemid=53 Shot like most of my panos with a Canon PowerShot 590is, but if I remember correctly, these patterns weren't so strong in earlier versions of APG, maybe I try an older version to see the difference. I played with the multiband level, but its always quite visible.
Ok, I see the difference. Leifs, could you please tell how you have created those images? Would be helpfull to do that on my own :-) Just increasing contrast and convert to b&w?
MfG Volker Klaffehn
I don't know if this is the ultimate way to explore vignetting, but it works. I do it like this: - open the image in Photoshop 12 (CS5) - image -> adjustments -> gradiant map - choose preset = Black, White - move the lower slider to the right (e.g. location=40%)