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[Rollei] Not to change the subject...

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?


B. D.

- -----Original Message-----
From: owner-rollei  us
[mailto:owner-rollei   On Behalf Of Martin
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.


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