The next members of the list helped me to make decision: "Fong Kwok Shiung" <[EMAIL PROTECTED]> "David E. Swayze" <[EMAIL PROTECTED]> "Colin Povey" <[EMAIL PROTECTED]> "Paul Bradforth" <[EMAIL PROTECTED]> "Thomas Heissel Dall" <[EMAIL PROTECTED]> I want to thank them the helpful answers. I bought this lens and I'll releate resoults. Zoltan
