Archived posting to the Leica Users Group, 1999/01/15

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Subject: RE: [Leica] Camera Bag for an amateur photographer with M6's
From: "Kotsinadelis, Peter (Peter)" <peterk@lucent.com>
Date: Fri, 15 Jan 1999 14:07:32 -0800

Well LUGs, 

I just go off the phone with Bill Maxwell, who besides being a repairman,
also has a masters in Physics.  My head hurts.  He tried to explain
tunneling to me but I got a bit lost.  I was only part right explaining the
rangefinder focusing on the M so excuse me on that.  One thing that stuck
was what he explained about the Leica lenses.  Now M lenses is what I am
refering to.  He is of the opinion that the R lenses, (The older ones Eric,
so I am not trying to get your dander up!) having repaired both Minolta and
Leica R lenses are really Minolta designs:-( (don't shoot me I am only the
messenger).  The newer R-lenses are not, they are Leica designs and should
outperform the older R lenses easily.
Anyway, many of the M lenses are designed for available light shooting at
which they excel.  Some lenses may not test as well as others, example given
to me was the Summicron DR would not test near as well as a Nikon 50mm in
terms of lpm resolution but outperformed it were it counted, available light
photography since it was able to better show the detail of images captured
in available light than the Nikon.  This has to do with something called
ellipsoidal waveforms, andthis is where I started getting lost.  So for what
its worth, some more info.  His favorite lens by the way is the 50mm 'lux.
For him that was the best available light lens made.  He has not tested the
Noctilux or new asph Summilux, so this refers to the previous generation.
Please note I am saying this not to cause a problem but it made me realize
that some lenses are better than others depending on how they are used in
photography.  

Peter K