Zeiss T* lenses for Contax/Hasselblad vs Rollei HFT lenses
qi bao
Zeiss make lenses for Hasselblad, Contax and Rollei. While the ones
for Hasselblad/Contax are prefixed with "Carl Zeiss T* followed by
Planar or Sonnar etc, those glasses for Rollei medium format and 35 mm
are rebadged Rollei HFT Planar or Sonnar etc without a Zeiss in sight.
Why is this? Are the differences confined to the coating process? Technically
speaking, with the identical optical configuration, which performs
better, T* or HFT?
I am all eyes. Thanx
qb
Marc James Small
In article <54p1pj$k...@mercury.hgmp.mrc.ac.uk>, q-...@nimr.mrc.ac.uk
says...
They are identical. Bob Salomon will dissent from this, but Zeiss has
licensed their proprietary T* process to Rollei, who so mark Zeiss
lenses manufactured at their Braunschweig plant -- identical lenses made
to Zeiss designs and with Zeiss standards in place. I believe some
Zeiss-produced Rollei lenses are also marked HFT (which, by the way,
stands, I recall, for High Frequency Transmission).
Over to you, Bob!
Marc
--
msm...@roanoke.infi.net FAX: +540/343-7315
Cha robh bas fir gun ghras fir!
Michael Gudzinowicz
qi bao <q-...@nimr.mrc.ac.uk> writes:
> Zeiss make lenses for Hasselblad, Contax and Rollei. While the ones for
> Hasselblad/Contax are prefixed with "Carl Zeiss T* followed by Planar or
> Sonnar etc, those glasses for Rollei medium format and 35 mm are
> rebadged Rollei HFT Planar or Sonnar etc without a Zeiss in sight.
>
> Why is this? Are the differences confined to the coating process?
> Technically speaking, with the identical optical configuration, which
> performs better, T* or HFT?
Rollei also uses glass supplied by Schneider for lenses which Zeiss can
not provide. By using their own multicoating system, they can match
color rendition across their entire product line. I've owned 35mm amd
MF systems to which you referred, and prefer Rollei, but those decisions
weren't based on coatings - the latest T* are probably as good as HFT.
Mike Rott
In article <54p1pj$k...@mercury.hgmp.mrc.ac.uk>, qi bao
<q-...@nimr.mrc.ac.uk> wrote:
> Zeiss make lenses for Hasselblad, Contax and Rollei. While the ones
> for Hasselblad/Contax are prefixed with "Carl Zeiss T* followed by
> Planar or Sonnar etc, those glasses for Rollei medium format and 35 mm
> are rebadged Rollei HFT Planar or Sonnar etc without a Zeiss in sight.
I think this is because Rollei makes these lenses themselves under licence
from Zeiss. In the case of hasselblad and contax, it is a partnership
between these companies and Zeiss, they make the cameras, zeiss makes the
lenses.
mike
qi bao
Michael Gudzinowicz wrote:
> Rollei also uses glass supplied by Schneider for lenses which Zeiss can
> not provide. By using their own multicoating system, they can match
> color rendition across their entire product line.
Marc James Small in an earlier post said T* and HFT are one process
given two differenct names. You are telling us they are two separate
systems. I am bit confused. Over to you, Marc.
Are the Schneiders for Rollei prefixed with "HFT? Hasselbald also use
Schneider zooms besides Zeiss primes, but AFAIK, these Schneiders are
not T* coated/badged.
>I've owned 35mm amd MF systems to which you referred, and prefer Rollei, but those
>decisions weren't based on coatings - the latest T* are probably as good as HFT.
Since you've owned both the Rollei systems, I'd like to put a question
to you: what's the rationale behind Rollei's obsession with dedicated
Ni-Cd rechargable batteries as power sources for its cameras?
Is your 35 mm a Rollei 3003?
thanx
qb