[rollei_list] Re: 'Old' Zeiss glass question... HFT and T*

Were there any other joint work between Asahi and Zeiss? Just wondering
because Asahi made some marvelous lenses so it would be interesting to find
out if Zeiss were behind any of it.

Peter K


On 4/26/06, Marc James Small <msmall@xxxxxxxxxxxx> wrote:
>
> At 01:29 AM 4/27/06 +0000, Carlos Manuel Freaza wrote:
> >Well, that was my original point Marc, that HFT and T*
> >are the same process, however the other point is that
> >Rollei developed with Zeiss the HFT to apply it for
> >the Zeiss lenses manufactured by Rollei in Singapore
> >under Rollei license as the Zeiss "Camera Lens News Nº
> >13, Spring 2001" explains... BYW, Prochnow says the
> >same thing in his book "Rollei 35, a camera history",
> >I don't think Prochnow could believe in hypes...
> >HFT is a process similar to Zeiss T*  and Rollei_Zeiss
> >co-developed, Rollei own the HFT process it is not a
> >Zeiss license.-
>
> Carlos
>
> This just is not true.  The Zeiss "T*" and Asahi SMC processes are
> identical ones developed jointly.  When Rollei purchased Voigtländer, they
> were permitted to license the T* process but Zeiss refused to do any
> further development work, though they have a proprietary claim on such
> work
> as Rollei does in tweaking the formula for use on the lenses made at
> Braunschweig.  (VERY few Singapore lenses were HFT, as production there
> was
> ramping down when HFT became available.  I vaguely recall that the Sonnar
> on the 35S family might have been the only Singapore-produced Rollei lens
> with HFT, if these lenses were actually made in Singapore, and some
> argument exists about that.)
>
> In other words, it was not a "joint Zeiss-Rollei project" but a one-way
> street, with Rollei paying money to use a Zeiss process.  To look at it
> another way, Zeiss is, with Canon, the largest optical firm in the world
> and has huge research facilities (whether Canon or Zeiss is larger depends
> on just how you are measuring things and just what you mean by "larger",
> but they are are the top two.)  Rollei is a roller-skate of a company and
> a
> joint Zeiss-Rollei research project would be on the order of having Cal
> Tech embark on a "joint research project" with Penn Forest Elementary
> School.
>
> Marc
>
> msmall@xxxxxxxxxxxx
> Cha robh bàs fir gun ghràs fir!
>
>
> ---
> Rollei List
>
> - Post to rollei_list@xxxxxxxxxxxxx
>
> - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
> in the subject field OR by logging into www.freelists.org
>
> - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
> 'unsubscribe' in the subject field OR by logging into www.freelists.org
>
> - Online, searchable archives are available at
> http://www.freelists.org/archives/rollei_list
>
>


--
Peter K
Ó¿Õ¬

Other related posts: