Archived posting to the Leica Users Group, 2003/05/17
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At 8:17 AM -0400 5/17/03, Don Dory wrote:
>Rafael,
>I wouldn't condemn all 28 Summicrons based on the sample provided. I
>suspect this one is flawed and needs to be returned. For example, last week
>one of the group complained that his/her 24 ASPH flared like crazy: yet I
>can not make mine flare, even when shooting diagonally into the sun.
>
>My personal belief is that the Leitz designs are very build sensitive. So
>if an element is a little out of place then really bad things happen. That
>might be why all aspheric lenses go back to Solms for repair.
>
>I can say that many on this list treasure the performance of their 28.
>
>Don
>dorysrus@mindspirng.com
Flare can be a QC issue. Vignetting, due both to optical design and
physical construction is a design issue that is at the very heart of
lens construction and will not vary from sample to sample.
See also my previous post on this topic.
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* Henning J. Wulff
/|\ Wulff Photography & Design
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|[ ]| http://www.archiphoto.com
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