[rollei_list] The Planar arrived

From: CarlosMFreaza <cmfreaza@xxxxxxxxx>
To: rollei_list@xxxxxxxxxxxxx
Date: Sat, 4 Jun 2011 22:35:13 -0300
I received the Planar HFT 1.8/50, it is in mint condition as the
seller wrote in the description. I could know that the Rollei Planar
1.8/50 is a third evolution regarding the 1950 Voigtländer Ultron
2/50, a 6 elements Gauss type design like the Planar. Carl Zeiss
modified this lens keeping the basic design but increasing the
elements to seven and the speed too, becoming a 1.8/50 lens, the main
feature was a big negative front element, it was the standard lens for
some  cameras like the Zeiss-Ikon/ Voigtlander Icarex (BM and TM) and
the SL-706, the Rolleiflex SL 35M and Voigtländer VSL 1 BM "father".
The third evolution was the CZ Rollei Planar 1.8/50, Color Ultron for
Voigtländers made by Rollei, very similar regarding the second CZ
Ultron version but with a different front element as you can see in
the diagrams in the web page mentioned below.

This is my SL 35 with the Planar:

http://www.flickr.com/photos/itarfoto/5797319475/in/photostream

Carlos



2011/6/2 CarlosMFreaza <cmfreaza@xxxxxxxxx>:
> I was looking for a normal lens for the SL35M and bought a Planar HFT
> 1.8/50 made by Rollei under CZ license a few days ago in our local
> e*** (about U$S 123, I'm waiting it) . I already had two Rolleinar
> lenses, a prime 3,5/200 (Mamiya) and a zoom 80mm-200mm (Tokina), both
> Multi-Coated, I find very good these lenses and posted several samples
> to Flickr including those ones on mountains taken with a Rolleinar
> Mamiya 2/50 already sold several years ago.
>
> It's not so easy (at least to me) to find info about the Planar 1,8/50
> QBM mount beyond descriptions and slight comments, Prochnow books have
> some data but cameras and accesories are his biggest interest. Anyway
> I found an Italian page with data and diagrams about several Planar
> designs and lenses including the Planar 2/50mm for the Contarex, the
> Rollei Planar 1.8/50 QBM and M42 and the Planar 1,4/50 QBM Rollei-CY
> Contax Yashica- ZF-ZK-ZE-ZS mounts.
>
> It's evident the page took info from the patents (they look European
> patents, I couldn't find them in Google patents). The Rollei Planar
> 1.8/50 (labeled Color-Ultron 1.8/50 for Voigtländer) is a CZ Erhard
> Glatzel and Erwin Konschak 1970 design. Glatzel worked on eight
> different Planar 1.8/50 prototypes to explore every design
> possibility, you can see the eight prototypes diagrams in the page
> (the production lens is marked), the caption says this number of
> prototypes look exaggerated to develop a regular standard lens, but it
> was Glatzel working style.
>
> Erhard Glatzel was also the successful Planar 1.4/50 Rollei QBM and
> Contax Yashica mount co-designer with Karl Heinrich Behrens in 1972,
> CZ web-site has a PDF file with technical data and MTF charts about
> this lens, the new Planar 1.4/50 ZF, ZK, ZE and ZS mounts is based on
> this lens. In the other hand, the Planar ZM 2/50 is based on the
> Planar 2/50 1953 design.
> The web page is a large one, most captions are in Italian but you can
> enjoy the diagrams and photographs, you need to scroll down the page
> to get all the info and images:
> http://www.marcocavina.com/articoli_fotografici/Zeiss_Planar_50mm_story/00_pag.htm
>
> Carlos
> PS:The Planar 1.8/50 QBM is appreciated as prime lens to use with
> Canon DSRL cameras via an adaptor, some of them have problems with the
> mirror and can't focus to infinity, it could be done raising the
> mirror and using the LiveView mode (I'm not sure about it, I read it).
> According some users comments, while the Canon FD 1.8/50 (a Planar
> design clearly) has similar performance regarding the Rollei Planar
> 1.8/50 at the lens center, the Rollei one is better than tha Canon on
> the edges.-
>
---
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[rollei_list] The Planar arrived

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