Archived posting to the Leica Users Group, 2011/04/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Herb, I am puzzled by your information. So far as I know, the Summitar was only made in screw mount, and only in 50mm. And I think they were all produced in Germany. Please take another look, and see if your lenses are actually marked as you showed in your post. Jim Nichols Tullahoma, TN USA ----- Original Message ----- From: "Herbert Kanner" <kanner at acm.org> To: "Leica Users Group" <lug at leica-users.org> Sent: Wednesday, April 13, 2011 1:51 PM Subject: [Leica] Lens color cast > After shooting the same subject with my 35mm and 90mm lens, I first > discovered that the 90mm produces a color cast roughly equivalent to that > produced by incandescent light. > > The two lenses are Summitar M, and state on the front: "Leitz Lens made > in Canada". > > It is not a problem. The color cast is easily correctable in Lightroom. I > am just curious as to why it is there. Is it something about the glass in > one of the lens elements, or has the cement on compound elements yellowed > through age? When I looked through the lens at a white area, I saw fully > uniform yellow. > -- > Herbert Kanner > kanner at acm.org > 650-326-8204 > > Do not meddle in the affairs of cats, > for they are subtle and will pee > on your computer! > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > >