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hoanpham
Joined: 31 Jan 2011 Posts: 2575
Expire: 2015-01-18
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Posted: Wed Jan 22, 2014 8:20 pm Post subject: carl zeiss p-planar 90mm f2.5 projection lens, need info.. |
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hoanpham wrote:
Just got a carl zeiss p-planar 90 2.5 projection lens.
It sits on a leica slide projector with missing parts.
How can i make use of it?
Thank you. |
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Attila
Joined: 24 Feb 2007 Posts: 57849 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Jan 22, 2014 8:31 pm Post subject: |
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Attila wrote:
hold before nex and see where it is sharp, if you are lucky distance is enough to put on any nex adapter and fix with tape , focus by feets and done. If okay you can start to think about aperture , focusing etc a permanent solution. Cut from cardboard rings with different guessed aperture, like to F4 , F8 , put on rear part and you will see also how lens perform stopped down, I think lens will be outstanding even wide open. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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paulhofseth
Joined: 05 Mar 2011 Posts: 564 Location: Norway
Expire: 2018-06-28
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Posted: Wed Jan 22, 2014 10:42 pm Post subject: better than colorplan |
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paulhofseth wrote:
One use is to project slides which the P-prefix indicates that it is optimized for; flat field and maybe between 1:50 and 1;100 scale magnification would seem to fit home sceens and white walls.
I use mine instead of the standard 90mm (first version) it seems to perform better. The C -90 has a little (not normally visible ) colouyr fringing.
Since the Leitz version is similar to the elmarit 90, I presume this planar can be used the same way for making pictures.
p- |
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hoanpham
Joined: 31 Jan 2011 Posts: 2575
Expire: 2015-01-18
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Posted: Wed Jan 22, 2014 10:49 pm Post subject: |
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hoanpham wrote:
Thanks Attila and Paul.
Any idea how to convert it ? |
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Attila
Joined: 24 Feb 2007 Posts: 57849 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Jan 22, 2014 11:21 pm Post subject: |
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Attila wrote:
hoanpham wrote: |
Thanks Attila and Paul.
Any idea how to convert it ? |
If register distance is long enough to convert simple solution is put into a larger tube and push pull as focusing device, there is many other variants , nex adapter with external blades, macro focusing extension, insert into a broken lens etc etc _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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Tedat
Joined: 08 Nov 2011 Posts: 800 Location: Berlin/Germany
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Posted: Thu Jan 23, 2014 11:55 am Post subject: |
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Tedat wrote:
any pictures of this lens? Could help to figure out how it can be converted/mounted _________________ Regards
Jan
flickr
Sony A7RM2
Contax T*: Distagon 4/18, Distagon 2/28, Distagon 1.4/35, PC-Distagon 2.8/35, Planar 1.4/50, Planar 1.4/85, Planar 2/100, Planar 2/135, S-Planar 2.8/60, Tessar 2.8/45, Mirotar 8/500, Vario Sonnar 3.4/35-70, Vario Sonnar 4.5-5.6/100-300
Carl Zeiss for Rollei QBM: F-Distagon 2.8/16 HFT, Distagon 2.8/25, Planar 1.4/50 HFT, Sonnar 2.8/85
Konica Hexanon AR: 2.8/21, 1.2/57
Other: Minolta F2.8 [T4.5] 135mm STF, Meopta Meostigmat 1.4/70, Tokina AT-X 2.5/90.. and lots of early M42 Yashinon, Rikenon and Mamiya lenses |
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hoanpham
Joined: 31 Jan 2011 Posts: 2575
Expire: 2015-01-18
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Posted: Thu Jan 23, 2014 3:41 pm Post subject: |
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hoanpham wrote:
Thanks for all replies.
The lens is still inside the slide projector.
I managed to power up, changed lamp, mechanism seems ok, very dusty. AF seems to work.
So if it's working, I may not unmount the lens.
It's a beautiful piece of glass. |
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