Archived posting to the Leica Users Group, 2011/04/13

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Subject: [Leica] Lens color cast
From: kanner at acm.org (Herbert Kanner)
Date: Wed, 13 Apr 2011 11:51:38 -0700
 
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!
Replies: Reply from kanner at acm.org (Herbert Kanner) ([Leica] Lens color cast)
Reply from jhnichols at lighttube.net (Jim Nichols) ([Leica] Lens color cast)