[rollei_list] Re: 'Old' Zeiss glass question

That's what I have as well, and don't use it as much as I should. Being a
B&W kind of guy, the pre-asph lenses and before suit me the best.

Jeffery Smith
New Orleans, LA
http://www.400tx.com




-----Original Message-----
From: rollei_list-bounce@xxxxxxxxxxxxx
[mailto:rollei_list-bounce@xxxxxxxxxxxxx] On Behalf Of Jerry Lehrer
Sent: Wednesday, April 26, 2006 5:08 PM
To: rollei_list@xxxxxxxxxxxxx
Subject: [rollei_list] Re: 'Old' Zeiss glass question


Jeffery,

Heavens, no!  I am just a poor retired engineer.

Actually, I prefer the image quality of the pre-Asph.
Summilux.

Jerry

Jeffery Smith wrote:

> Jerry, is your 50 1.4 'lux the new asph. model?
>
> At 03:37 PM 4/26/2006, you wrote:
> >Jeffery,,
> >
> >I can accept your rather strange assertion only because I do not know 
> >the extent of your "entire collection".  It may e like mine; dozens 
> >of lenses, but only ONE 50mm lens.  A f1.4 Summilux.
> >
> >Jerry
> >
> >Jeffery Smith wrote:
> >
> > > I'm still amazed that the best overall performing lens in my 
> > > entire collection is a 50/3.5 CV Heliar that was from a design 
> > > waaaaay back in the early 20th century. It seems to have been 
> > > based on an earlier design of the Tessar. Very simple, but very 
> > > good optically.
> > >
> > > Jeffery
> > >
> > > At 03:14 PM 4/26/2006, Richard wrote:
> > > >   As far as design goes, my designer friend, Brian Caldwell, 
> > > > tells me that many of the older Zeiss designs are about as good 
> > > > as they can get. Setting these up in a lens optimization program 
> > > > demonstrates that even changes in glass types will not much 
> > > > improve them. Old Tessars and Protars fall into this category. 
> > > > This is not to say that they are wonderful lenses, only that 
> > > > Zeiss pretty well exhausted the capabilities early on.
> > >
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