[rollei_list] Re: Why has Rollei not yet presented a Tele-Rolleiflex?
- From: Carlos Manuel Freaza <cmfreaza@xxxxxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Tue, 2 Aug 2005 23:24:27 +0000 (GMT)
I'm not a technician Ruben, perhaps Todd or Richard K
are the indicated persons for an opinion on your idea;
talking about a TLR it's necessary to think for two
lenses working right simultaneously, you'd need to
make collapsable two lenses working together and I
think this system is incompatible with the Rolleiflex
philosophy, two large and heavy tele lenses needing a
perfect synchro require a very strong focusing
mechanism. F&H and Rollei have patented two focusing
mechanism, one for the Rolleiflex, other for the
Rolleicord, both cameras seem identical for this
mechanism, but they have several differences
internally. Rollei developed a Tele prototype on 1965,
Friedrich Sommermeyer design, with a very strong and
long focusing mechanism based on the Rolleicord
system, Rollei almost don't need to develop a new
system, as I wrote, the prble are the new tooling
costs for the production.-
All the best
Carlos
--- Ruben <ruben@xxxxxxxxx> escribió:
> I do not know all that much about optics - so this
> may be a nonsense
> suggestion - but if the bodie can not extent focus
> further in order to
> achieve focus gloser than 2,6 M - with out expensive
> changes would it not be
> possible to make that change in the lens instead -
> like the colabsable leica
> lenses from the screw mount leicas - to a lot lower
> developement cost ?? -
> lens pulled out would be 1 M to 3 M and pressed in 3
> M to infinity ??
> best
> Ruben
> ----- Original Message -----
> From: "Carlos Manuel Freaza" <cmfreaza@xxxxxxxxxxxx>
> To: <rollei_list@xxxxxxxxxxxxx>
> Sent: Wednesday, August 03, 2005 12:32 AM
> Subject: [rollei_list] Re: Why has Rollei not yet
> presented a
> Tele-Rolleiflex?
>
>
> > Yes Peter, that's evident and I agree with you,
> > however I'd add the new tooling costs as decisive
> to
> > suspend the project, the FX and FW also have a
> limited
> > market today but Rollei is manufacturing them yet,
> > they did not doubt to launch the FW on 2002
> because
> > they could use for it almost the same tooling used
> to
> > manufacture the FX.
> > BTW, I think Rollei already has the prototype for
> the
> > new Tele, I remember both FW and Tele were
> introduced
> > in Japan around 2000 or 2001, however the
> protoypes
> > are hand made and the investment for new tooling
> > dedicated to specific models is very high, a
> failure
> > for this investment always was one of the main
> > preoccupations for the old F&H; in fact F&H had
> almost
> > ready for production a new Tele prototype around
> 1965
> > with a long focusing travel based on the
> Rolleicord
> > focusing mechanism and a 145mm lens allowing the
> > shortest focusing distance at 1m without
> supplementary
> > lenses, but Rollei decided to invest for tooling
> to
> > manufacture the SL 66 and the Rollei 35.
> > BTW there are several collectors and photographers
> > with money waiting for the new Tele, this is the
> > reason Rollei explain why they suspended the new
> Tele
> > production, but their number is not sufficient to
> risk
> > an investment for new tooling.-
> >
> > All the best
> > Carlos
> >
> >
> > --- "Peter K." <peterk727@xxxxxxxxx> escribió:
> >
> >> Carlos,
> >> I think the last paragraph says it all. Limited
> >> market. Hence the real
> >> reason for the cancellation.
> >> Rollei needs to make money to survive, so putting
> >> R&D into a product with
> >> limited appeal is not wise in this day and age.
> >> Peter K
> >>
> >> On 8/2/05, Carlos Manuel Freaza
> >> <cmfreaza@xxxxxxxxxxxx> wrote:
> >> >
> >> > For the old RUG Prof. E.Bigler and I could
> >> translate
> >> > from the German language Rollei's explanation
> >> about
> >> > the reasons they suspended the new Tele- Rollei
> >> > development and manufacture. Now Rollei has
> >> included
> >> > the explanation in the English page, I copied
> it
> >> > because the page has frames and then it's
> >> difficult to
> >> > quote the exact URL:
> >> > From Rollei Web page:
> >> >
> >> > "Question:
> >> > Why has Rollei not yet presented a
> >> Tele-Rolleiflex?
> >> >
> >> > Answer:
> >> >
> >> > After introduction of the wide-angle Rolleiflex
> at
> >> > photokina 2002, development focused on a new
> >> > Tele-Rolleiflex. One major complaint voiced
> >> against
> >> > the historic Tele-Rolleiflex was its shortest
> >> focusing
> >> > distance of only 2.6 m, which many
> photographers
> >> found
> >> > unsatisfactory for portraiture with the 6x6
> medium
> >> > format and a focal length of 135 mm. It was for
> >> this
> >> > reason that a close-focus attachment
> (Rolleinar)
> >> was
> >> > at the time suplied for the Tele-Rolleiflex
> that
> >> > brought the close-focus distance down to 1 m.
> >> >
> >> > Due to the fact, however, that supplementary
> >> lenses
> >> > invariably degrade the optical performance of a
> >> > photographic lens, one of the primary design
> >> > specifications for the new Tele-Rolleiflex was
> an
> >> > extended short-focusing range that should be
> >> available
> >> > without any close-up lenses.
> >> >
> >> > Unfortunately, the limited focusing travel of
> >> > Rolleiflex cameras does not permit the
> >> implementation
> >> > of such an extended short-focusing range. This
> >> would
> >> > be possible only with the aid of extensive
> design
> >> > changes and costly new tooling. In view of the
> >> limited
> >> > marketing potential of a new Tele-Rolleiflex,
> >> Rollei
> >> > have decided not to make this investment and
> have
> >> > therefore discontinued development of such a
> >> camera
> >> > for the time being."
> >> >
> >> > All the best
> >> > Carlos
> >> >
> >> >
> >> >
> >> >
> >> >
> __________________________________________________
> >> > Correo Yahoo!
> >> > Espacio para todos tus mensajes, antivirus y
> >> antispam ¡gratis!
> >> > ¡Abrí tu cuenta ya! -
> http://correo.yahoo.com.ar
> >> > ---
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> >> >
> >>
> >>
> >> --
> >> Peter K
> >> Ó¿Õ¬
> >>
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
___________________________________________________________
>
=== message truncated ===
__________________________________________________
Correo Yahoo!
Espacio para todos tus mensajes, antivirus y antispam ¡gratis!
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