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Re: [Rollei] Not to change the subject...



BD

Same as adapting the chimney finder-------- Except
that there is not enough adjustment in the eyepiece
to compensate for the "lift" of the prism due to
mounting it on a modified base.

BTW, my chimney finder is still available to you.

Jerry

bdcolen wrote:

> But have any of you ever tried to mount/adapt a Hasselblad NC2 45 degree
> prism finder to on a Rollei 2.8 F...If so, does it work, and how
> difficult is it to do?
>
> Thanks
>
> B. D.
>
> -----Original Message-----
> From: owner-rollei  us
> [mailto:owner-rollei   On Behalf Of Martin
> Jangowski
> Sent: Wednesday, April 30, 2003 2:28 PM
> To: rollei  us
> Subject: Re: [Rollei] Why the 6-element lens for 3.5Fs
>
> On Wed, 30 Apr 2003, Kotsinadelis, Peter (Peter) wrote:
>
> >
> >
> > All,
> >
> > It was mentioned in a previous post that F&H went to great lengths to
> > ensure the quality of the lenses received from Zeiss. F&H tested each
> > lens and allegedly rejected up to 50% that did not meet their
> > standards.  Could it have been Zeiss who decided on the added 6th
> > element for the 3.5 Planar?  After all it was said this element was
> > added to ensure the the lenses met the standards of F&H, so if Zeiss
> > did this it may have reduced the number of rejected lenses.  Just a
> > thought.
>
> This is very much possible. After all, new lens formulas are often
> created to enlarge manufacturing tolerances while getting the same
> quality. You can steer the development a new optic to better quality or
> larger tolerances, but usually not both.
>
> Martin
>
> | Martin Jangowski                         E-Mail: Martin  
> |                        Netzwerke und Multimedia                     |
> | Voice: +49 7946/940790                         Fax: +49 7946/940791 |
> | Snail Mail: Von-Olnhausen Str. 4            74626 Bretzfeld Germany |

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