Now I'm not sure I understood you, If you put the "D" lens on your film camera body ( Canon don't let you do it !) you will get a very severe vignetting because the smaller cone of light. Pini- Haifa, Israel _______________________ Pini Vollach http://www.pinimage.com -----Original Message----- From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of kpp@xxxxxxxxxx Sent: Saturday, August 21, 2004 9:55 AM To: List for Photo/Imaging Educators - Professionals - Students Subject: Re: Digital lens question > anyone has any commnets on the new Tamron SP AF28-75MM F/2.8 XR Di LD > Aspherical (IF) lens.. Can You spell it in one breath? :o)Peeter no, but i can copy/paste between web pages much easier...is that the new kind of literacy for "homo internetus"? LOL >Normal lenses introduce light in a sort of cone shaped projection against >the film plane, while digital lenses should and now do project the light in >parallel almost a rectangular shaped prjoection that fall upon the chip. > >Steve Shapiro, Carmel, CA ouch! is this good news ?...regarding film cameras. I suppose that the beam at the lowest setting will be a cylidrical one covering 28mm in film equivalent...yet for digi cameras the sensor being smaller, it crops the image to a smaller ratio (equivalent to 42mm of film focal length). So following my reasoning that is VERY good...only thing that remains is for someone to comfirm that i assumed correctly. thanks pals, kostas ____________________________________________________________________________ _________ http://www.mailbox.gr ֱנןךפ?ףפו השסו?ם פן לןםבהיך? ףבע e-mail. http://www.thesuperweb.gr Website לו ֱףצבכ?ע Controlpanel בנ? 6 Euro ךבי הסן פן domain ףבע!
