[rollei_list] Re: 2.8 80mm Opton-Tessar
- From: Carlos Manuel Freaza <cmfreaza@xxxxxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Wed, 15 Nov 2006 09:12:49 +0000 (GMT)
Marc:
In the Rollei Report 1, page 7-190 you can see
the photograph about the Rolleiflex Standard prototype
with Tessar 2.8/80 and size 0 Compur shutter PR 061,
the comment says that on 1934 CZJ developed this
faster lens for the prototype but the design was
shelved because the lens performance was not yet
satisfactory, Prochnow also adds that on 1938 the idea
was taken up again "and the lens recomputed". I have
no doubt that the two lenses Rollei bought on 1938
from CZ were to develope the 2.8A prototype.
In the Rollei Report II, page 16-345 you can see the
1939 2.8A prototype PR 149 and you can read the
reasons F&H couldn't manufacture for the market the
camera before the WWII, the camera was developed again
10 years later.
Perhaps I did not use right the word "re-designed",
the exact word is "recomputed", you could recompute
the same design, but both words have similar practical
effects.-
All the best
Carlos
--- Marc James Small <marcsmall@xxxxxxxxxxx> escribió:
> At 08:23 PM 11/14/2006, Carlos Manuel Freaza wrote:
> >Marc:
> > On 1934 CZJ developed a Tessar 2.8/80 lens
> >prototype for the Rolleiflex Standard, but it had
> bad
> >quality and F&H rejected the lens.
> >On 1938 CZJ re-designed the Tessar 2.8/80 and this
> >time F&H accepted the lens performance developing
> the
> >1939 Rolleiflex 2.8A 2.8/80 prototype (PR 149) but
> the
> >production couldn't begin due to the war, this
> protype
> >was the basis for the 1948 2.8A prototype with some
> >changes.
>
> Carlos
>
> The factory is adamant that ALL 2.8/8cm CZJ
> Tessars were made to the 1931 design save for the
> 3 "Muster" lenses. The 2.8A CZJ Tessars were all
> of Prewar or early wartime manufacture as no
> 2.8/8cm Tessars were made at Jena after
> 1941: the Postwar lenses were 2.8/80mm, but none
> of those were made for Rolleiflex. So the tale
> of a mid-1930's redesign to meet F&H needs appears
> to be false.
>
> It would help if folks out there owning either
> Ikoflex III or Rolleiflex 2.8's would submit
> their serial numbers to confirm our picture of the
> origin of these lenses.
>
> Incidentally, the camera is the 2.8, not the 2.8A
> for the same reason that "Good Queen Bess" was
> just Queen Elizabeth in her lifetime: she only
> became "Queen Elizabeth I" in 1952 when the
> present British monarch ascended the throne. To
> F&H, the progression went from 2.8 to 2.8B: the
> 3.5's went from Rolleiflex 3.5, followed by the
> 3.5A. Properly, F&H should have called what we
> now as the 2.8B the "2.8A" but for reasons unkknow,
> they did not do so.
>
> Marc
>
>
>
> msmall@xxxxxxxxxxxx
> Cha robh bàs fir gun ghràs fir!
>
> ---
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