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Hamiltom
Joined: 01 Jul 2012
Posts: 2
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 Posted: Mon Jul 02, 2012 1:11 am Post subject: need help CZJ Tessar 2.8/50 no aperture ring weird mount |
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Hamiltom wrote:
Hi Everyone,
I have a collection of old lenses that I have started to use again and I can't figure out this old Carl Zeiss lens. It has no aperture ring and a bayonet mount. The aperture blades function by depressing a countersunk button. I would appreciate anyone suggestions on what I can do to use this lens.
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fermy
Joined: 17 Feb 2012
Posts: 1974
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| Posted: Mon Jul 02, 2012 1:33 am Post subject: Re: need help CZJ Tessar 2.8/50 no aperture ring weird moun |
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fermy wrote:
| Hamiltom wrote: |
Hi Everyone,
I have a collection of old lenses that I have started to use again and I can't figure out this old Carl Zeiss lens. It has no aperture ring and a bayonet mount. The aperture blades function by depressing a countersunk button. I would appreciate anyone suggestions on what I can do to use this lens.
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Now your pictures will show up...
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WolverineX
Joined: 19 Apr 2009
Posts: 1693
Location: Zagreb , Croatia , Europe
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| Posted: Mon Jul 02, 2012 6:18 am Post subject: |
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WolverineX wrote:
exacta mount?
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http://forum.mflenses.com/wolverinex-testing-my-lenses-series-link-list-t39524.html |
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Gertjan
Joined: 06 May 2009
Posts: 18
Location: Netherlands
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| Posted: Mon Jul 02, 2012 7:16 am Post subject: |
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Gertjan wrote:
your lens is Praktina mount.
Very hard to adapt, because the diafragm is operated by the camera...
(The camera pushes a pin in the mount to open the diafragm)
Regards, Gertjan.
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Canon 5DmkII, 7D, 20D
Canon 24L, 35L, 50 f1.4, 85 f1.8, 135L, 200 f2.8L, 300-f2.8LIS, 16-35LmkII, 24-105L, 70-200 f2.8LISmkII, 1.4x ext.II, 2x ext.II.
Carl Zeiss ZE 2.8/21, ZE 2/25, ZF 2/35, ZF 2/100 Macro.
Carl Zeiss Jena 4/20 Flek, 4/25 Flek, 2.8/35 Flek, 2/50 Pancolar, 2.8/50 Tessar, 2.8/58 Biotar, 1.5/75 Biotar, 2.8/80 Biometar, 4/135 Sonnar.
Leica-R Elmarit 2.8/28, Macro 2.8/60, 2.8/135.
Pentacon 1.8/50auto, Helios 44-2, 44M & 44-M-6, A.Schacht 2.8/90, Meyer Orestor 2.8/135, Jupiter-21M. |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Mon Jul 02, 2012 9:27 am Post subject: |
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iangreenhalgh1 wrote:
I think it's Pentina, not Praktina. 
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I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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scsambrook
Joined: 29 Mar 2009
Posts: 2167
Location: Glasgow Scotland
Expire: 2011-11-18
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| Posted: Mon Jul 02, 2012 9:29 am Post subject: |
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scsambrook wrote:
Gertjan, I wonder if this is actually for the leaf-shutter East German slr dating from the mid-1960s? I must be getting old, the name escapes me at the moment . . . was it the Pentina?
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Stephen
Equipment: Pentax DSLR for casual shooting, Lumix G1 and Fuji XE-1 for playing with old lenses, and Leica M8 because I still like the optical rangefinder system. |
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scsambrook
Joined: 29 Mar 2009
Posts: 2167
Location: Glasgow Scotland
Expire: 2011-11-18
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| Posted: Mon Jul 02, 2012 9:29 am Post subject: |
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scsambrook wrote:
Ah, Ian beat me to it!
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Stephen
Equipment: Pentax DSLR for casual shooting, Lumix G1 and Fuji XE-1 for playing with old lenses, and Leica M8 because I still like the optical rangefinder system. |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Mon Jul 02, 2012 9:30 am Post subject: |
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iangreenhalgh1 wrote:
| scsambrook wrote: |
| Gertjan, I wonder if this is actually for the leaf-shutter East German slr dating from the mid-1960s? I must be getting old, the name escapes me at the moment . . . was it the Pentina? |
LOL, we had the same thought at the same time!
The aluminium focusing ring is the giveaway, all the Pentina lenses by Meyer and CZJ had the same distinctive ring like the Tessar the OP has.
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I don't care who designed it, who made it or what country it comes from - I just enjoy using it!
Last edited by iangreenhalgh1 on Mon Jul 02, 2012 10:50 am; edited 1 time in total |
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heritagecameras
Joined: 19 Feb 2011
Posts: 104
Location: UK
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| Posted: Mon Jul 02, 2012 9:34 am Post subject: Re: need help CZJ Tessar 2.8/50 no aperture ring weird moun |
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heritagecameras wrote:
| Hamiltom wrote: |
| I have a collection of old lenses that I have started to use again and I can't figure out this old Carl Zeiss lens. It has no aperture ring and a bayonet mount. The aperture blades function by depressing a countersunk button. I would appreciate anyone suggestions on what I can do to use this lens. |
That looks like the standard lens from a Pentina camera. This was an East German SLR with a leaf shutter behind the lens, and an exclusive breech lock lens mount:
http://www.praktica-collector.de/117_Pentina_E.htm
There was a thread here about the lenses:
http://forum.mflenses.com/viewtopic.php?t=35293
It's going to be difficult (but not impossible) to adapt this to anything modern. As the aperture ring was on the body and not the lens, you'll need to manufacture an adapter that has its own diaphragm control. This might be achieved by salvaging parts from a non-working camera (most of them seem to be non-working these days). Whether it's worth the trouble is another matter... Tessars are widely available in more friendly mounts!
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Gertjan
Joined: 06 May 2009
Posts: 18
Location: Netherlands
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| Posted: Mon Jul 02, 2012 10:51 am Post subject: |
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Gertjan wrote:
I think you guys are right with Pentina.
Actually I have the very same lens that Ian showed, the Meyer Domigor 4/135 in Pentina mount.
Even with that lens in front of me I thougt it looked more like Praktina......
Unfortunately is the practical difference very small....
Both mounts have in common that, because of the camera operated aperture, they are allmost impossible to adapt......
Regards, Gertjan.
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Canon 5DmkII, 7D, 20D
Canon 24L, 35L, 50 f1.4, 85 f1.8, 135L, 200 f2.8L, 300-f2.8LIS, 16-35LmkII, 24-105L, 70-200 f2.8LISmkII, 1.4x ext.II, 2x ext.II.
Carl Zeiss ZE 2.8/21, ZE 2/25, ZF 2/35, ZF 2/100 Macro.
Carl Zeiss Jena 4/20 Flek, 4/25 Flek, 2.8/35 Flek, 2/50 Pancolar, 2.8/50 Tessar, 2.8/58 Biotar, 1.5/75 Biotar, 2.8/80 Biometar, 4/135 Sonnar.
Leica-R Elmarit 2.8/28, Macro 2.8/60, 2.8/135.
Pentacon 1.8/50auto, Helios 44-2, 44M & 44-M-6, A.Schacht 2.8/90, Meyer Orestor 2.8/135, Jupiter-21M. |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Mon Jul 02, 2012 10:57 am Post subject: |
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iangreenhalgh1 wrote:
You are correct Gertjan, you would need to remove the aperture control and mount from the camera to adapt these lenses.
It would be worth doing for the 85mm Cardinar as it only appeared in Pentina mount and should be a stunning lens as the 100mm Cardinar for Werra is.
I don't know about the Domigor, it only appeared in Pentina, it is probably a different formula to the common 2.8/135 Meyer as it is an f4 lens.
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I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
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| Posted: Mon Jul 02, 2012 11:30 am Post subject: |
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Attila wrote:
I adapt Domigor with tape to play ok.
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Hamiltom
Joined: 01 Jul 2012
Posts: 2
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| Posted: Mon Jul 02, 2012 12:04 pm Post subject: |
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Hamiltom wrote:
Wow, thanks for all the replies. I have never seen a pentina. I have to agree that this one is not going to be worth modifying. It will end up a decoration or a parts donor if I get another that is in rough shape.
Thanks again for all that replied. I just realized how much I have to learn about this hobby. |
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Gertjan
Joined: 06 May 2009
Posts: 18
Location: Netherlands
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| Posted: Mon Jul 02, 2012 12:38 pm Post subject: |
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Gertjan wrote:
Attila’s reply stimulated me. You have to be creative!
This Pentina Domigor 4/135 was just sitting on my shelf for years.
So, I opened the lens. When you remove the aperture pin the aperture springs wide open.
And wide open is the most interesting aperture of lenses like this one!
I mounted the lens to a short (18mm) extension ring, with tape.
It works on my Canon 5D2, with infinity focus, easy clearing the mirror.
First test shots are looking good. I found a new hobby / adapting project.
Thanks Atilla, for stimulating me.
For your peace of mind, my tinkering is fully reversible (until now.....)
Regards, Gertjan.
_________________
Canon 5DmkII, 7D, 20D
Canon 24L, 35L, 50 f1.4, 85 f1.8, 135L, 200 f2.8L, 300-f2.8LIS, 16-35LmkII, 24-105L, 70-200 f2.8LISmkII, 1.4x ext.II, 2x ext.II.
Carl Zeiss ZE 2.8/21, ZE 2/25, ZF 2/35, ZF 2/100 Macro.
Carl Zeiss Jena 4/20 Flek, 4/25 Flek, 2.8/35 Flek, 2/50 Pancolar, 2.8/50 Tessar, 2.8/58 Biotar, 1.5/75 Biotar, 2.8/80 Biometar, 4/135 Sonnar.
Leica-R Elmarit 2.8/28, Macro 2.8/60, 2.8/135.
Pentacon 1.8/50auto, Helios 44-2, 44M & 44-M-6, A.Schacht 2.8/90, Meyer Orestor 2.8/135, Jupiter-21M. |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15679
Expire: 2014-01-07
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| Posted: Mon Jul 02, 2012 1:02 pm Post subject: |
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iangreenhalgh1 wrote:
Look forward to seeeing some samples from the Domigor
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I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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