[rollei_list] Re: Planar, Xenotar, Summicron

From: Jerry Lehrer <jerryleh@xxxxxxxxxxx>
To: rollei_list@xxxxxxxxxxxxx
Date: Thu, 26 May 2005 11:19:27 -0700

Richard,

You have NOT written too much.  I read and enjoy
it all.

Now, i understand that some Aspheric surfaces are
cast and not ground at all!

What is your opinion of the much rumored Leica
lenses which have "non-glass" (read; plastic) internal
elements.  They are supposed to be fast and light weight.

Richard Knoppow wrote:

> ----- Original Message -----
> From: "Ardeshir Mehta" <ardeshir@xxxxxxx>
> To: <rollei_list@xxxxxxxxxxxxx>
> Sent: Wednesday, May 25, 2005 8:09 PM
> Subject: [rollei_list] Re: Planar, Xenotar, Summicron
>
> >
> > On 25-May-05, at 7:24 PM, Richard Knoppow wrote:
> >
> >> [...]
> >>
> >> In any case, all of these lenses, five element and six
> >> element
> >> Planar/Xenotar, and the Leitz Summicron, are all members
> >> of the
> >> same family of lenses.
> >
> > MOST instructive. Thanks.
> >
> > BTW: does anyone (Richard?) know to which family the
> > (modern) Canon
> > EF 50 mm f/1.8 lens belongs? (I'm NOT speaking of the 50
> > mm f/1.4 here.)
> >
> > (I'd like to know since I have one of those for my EOS
> > Elan 7, and it
> > comes highly recommended, optically speaking, even though
> > it's quite
> > inexpensive).
> >
> > Cheers.
>
>
>
>
>
>
> I've written too much.
>
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
>
> ---
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Follow-Ups:
- [rollei_list] Re: Planar, Xenotar, Summicron
  - From: Eric Goldstein

References:
- [rollei_list] Re: OT - Bokken (was: Question on operatingand on screen for Rollei GX and Hood)
  - From: Marvin Wallace
- [rollei_list] Re: OT - Bokken (was: Question on operatingand on screen for Rollei GX and Hood)
  - From: Richard Knoppow
- [rollei_list] Re: Planar, Xenotar, Summicron
  - From: Ardeshir Mehta
- [rollei_list] Re: Planar, Xenotar, Summicron
  - From: Richard Knoppow

[rollei_list] Re: Planar, Xenotar, Summicron

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