Archived posting to the Leica Users Group, 2011/04/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I have taken very many looks. But just to make it clear: They are M series lenses. Except for focal length, they have the same legend on the front: "LEITZ LENS MADE IN CANADA SUMMICRON - M 1:2/90" and "LEITZ LENS MADE IN CANADA SUMMICRON - M 1:2/35" Herb >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 >> >> > > > >_______________________________________________ >Leica Users Group. >See http://leica-users.org/mailman/listinfo/lug for more information -- 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!