I think you may like to read this AF 28-105/3.5-4.5D IF review by David Ruether. http://imperium.bayside.net/ruether/articles.html I don't know how long it has been there but I just found his url in my bookmark which I kept since I read his 24-120 back then. He did not mention anything about vignette or not as far as I can see. Actually, I don't really understand every single thing he said. But the conclusion is quite clear. Best regards, Ruckdee C. [E20JLS] http://i.am/renardnolt ------- [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED]