[rollei_list] Re: OT - Bokken (was: Question on operatingand on screen for Rollei GX and Hood)

Richard

Is there a reason why you do not se planars faster than 2,8 and summicrons 
faster than 2,0 ? or is a summilux 1,4 just a fast summicron ?

I am asking questions here in a field I know nothing about so please excuse 
me if there are faste planars etc.

best

Ruben

----- Original Message ----- 
From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Thursday, May 26, 2005 1:24 AM
Subject: [rollei_list] Re: OT - Bokken (was: Question on operatingand on 
screen for Rollei GX and Hood)


>
> ----- Original Message ----- 
> From: "Marvin Wallace" <Marvin0@xxxxxxxxxxxxxx>
> To: <rollei_list@xxxxxxxxxxxxx>
> Sent: Wednesday, May 25, 2005 3:55 PM
> Subject: [rollei_list] Re: OT - Bokken (was: Question on
> operatingand on screen for Rollei GX and Hood)
> snip....
> Five element lenses were used in the f/2.8 Rollei cameras. The
> design was changed to a conventional six element design for
> the f/3.5 camera presumably because it proved to be less
> expensive to make despite the additional element and
> cemented surface.
>  In any case, all of these lenses, five element and six
> element Planar/Xenotar, and the Leitz Summicron, are all
> memebers of the same family of lenses.
>
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
>
> ---
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