Mark,

Thank you so much. This is excellent information, and now I AM actually considering the green lens. I did not think to examin my exif data to find out what lens I would end up using more. After all, I just bought a reflex. Still, I am going to start analizing my shots to form an idea also based on data rather than just on "feeling".


P.S.: I can't see the bull-eyed centered blur.

P.P.S.: Mark, the .gz file you attached seems to be currupt or only partily there. I get an unexpected end of archive error. Size on my disk after dload is 26,596 bytes.