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Jesito
Joined: 24 Aug 2007
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Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
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 Posted: Sun Jun 24, 2012 2:53 pm Post subject: Please, help me in identifying this... Tessar? |
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Jesito wrote:
To me looks like a Tessar: It's marked "Jena", it's a 50mm 2.8 and the serial number marks it as if it was manufactured after 1961.
It has a M42 mount, and the lever matches in place the ones of similar Tessars.
However, I've never seen one like this one before:
The lens seems to be okay but for the silver aperture ring that doesn't move the diaphragm...
The next question is : How to disassemble it?.
Thanks in advance.
Jes.
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DSLR SIGMA SD9 & SD14, EOS 5D, Sony A700 and NEXF3, Oly E-330, E-400, E-450, E-1
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Rangefinders Chinon 35EE, Konica C35 auto, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3 & C4, Regula Cita III, Voigtlander Vitoret (many), Welta Welti-I, Kodak Signette 35, Zorki-4, Bessa-R & L, Minolta Weathermatic, olympus XA2
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Sun Jun 24, 2012 2:59 pm Post subject: |
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Orio wrote:
It is indeed a genuine Tessar, it belongs to the period when, due to the legal dispute with western Zeiss, Jena Zeiss did produce
lenses for western market avoiding to use trademark names such as "Tessar" and "Carl Zeiss".
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Jesito
Joined: 24 Aug 2007
Posts: 5745
Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
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| Posted: Sun Jun 24, 2012 3:19 pm Post subject: |
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Jesito wrote:
| Orio wrote: |
It is indeed a genuine Tessar, it belongs to the period when, due to the legal dispute with western Zeiss, Jena Zeiss did produce
lenses for western market avoiding to use trademark names such as "Tessar" and "Carl Zeiss". |
Thanks, Orio!.
Then I'll try to follow one of the existing disassembly guides, even if this one doesn't have any screw in the mount side.
Jes.
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Jesito, Moderator
Jesito's backsack:
Zooms Sigma 70-300, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro, 35-70, 35-80, Vivitar 70-210 KA, Tamron 70-250.
Fixed Industar-50, , Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Pancolar 50mm, Volna-3, many Exakta lenses
DSLR SIGMA SD9 & SD14, EOS 5D, Sony A700 and NEXF3, Oly E-330, E-400, E-450, E-1
TLR/6x6/645 YashicaMat, Petri 6x45, Nettar, Franka Solida, Brilliant
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S, Ricoh, Contax, Konica TC-X , Minolta 5000, 7000i, 3Sxi, EOS 500 and CX
Rangefinders Chinon 35EE, Konica C35 auto, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3 & C4, Regula Cita III, Voigtlander Vitoret (many), Welta Welti-I, Kodak Signette 35, Zorki-4, Bessa-R & L, Minolta Weathermatic, olympus XA2
Compact Film Konica C35V, Voigtlander Vitorets, Canon Prima Super 105, Olympus XA2 and XA3
Compact Digital Olympus C-5050, Aiptek Slim 3000, Canon Powershot A540, Nikon 5200, SIGMA DP1s, Polaroid X530, IXUS55, Kodak 6490, Powershot G9 and G10
CSCCanon EOS-M, Samsung NX100 and NX210, Lumix G5, NEX-F3 |
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Sun Jun 24, 2012 3:20 pm Post subject: |
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Orio wrote:
Maybe removing the leatherette?
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Jesito
Joined: 24 Aug 2007
Posts: 5745
Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
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| Posted: Sun Jun 24, 2012 3:28 pm Post subject: |
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Jesito wrote:
| Orio wrote: |
| Maybe removing the leatherette? |
Yes, I'll try to. Also start unscrewing the front plate...
I'll post pictures.
Again, thanks for the suggestion.
Jes.
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Jesito, Moderator
Jesito's backsack:
Zooms Sigma 70-300, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro, 35-70, 35-80, Vivitar 70-210 KA, Tamron 70-250.
Fixed Industar-50, , Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Pancolar 50mm, Volna-3, many Exakta lenses
DSLR SIGMA SD9 & SD14, EOS 5D, Sony A700 and NEXF3, Oly E-330, E-400, E-450, E-1
TLR/6x6/645 YashicaMat, Petri 6x45, Nettar, Franka Solida, Brilliant
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S, Ricoh, Contax, Konica TC-X , Minolta 5000, 7000i, 3Sxi, EOS 500 and CX
Rangefinders Chinon 35EE, Konica C35 auto, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3 & C4, Regula Cita III, Voigtlander Vitoret (many), Welta Welti-I, Kodak Signette 35, Zorki-4, Bessa-R & L, Minolta Weathermatic, olympus XA2
Compact Film Konica C35V, Voigtlander Vitorets, Canon Prima Super 105, Olympus XA2 and XA3
Compact Digital Olympus C-5050, Aiptek Slim 3000, Canon Powershot A540, Nikon 5200, SIGMA DP1s, Polaroid X530, IXUS55, Kodak 6490, Powershot G9 and G10
CSCCanon EOS-M, Samsung NX100 and NX210, Lumix G5, NEX-F3 |
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bob955i
Joined: 15 Apr 2007
Posts: 2495
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| Posted: Sun Jun 24, 2012 5:46 pm Post subject: |
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bob955i wrote:
@ Jes:
Unscrew the rear trim ring - the one around the mount and you should see screws underneath. Undo these screws to remove the lens mount and take it from there. This rear ring might be very tight so use some rubber gloves or something to help grip it. Don't try and remove the leatherette as it's actually textured vulcanite...
I've got a zebra Flek 25 that dismantles this way. |
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Jesito
Joined: 24 Aug 2007
Posts: 5745
Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
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| Posted: Sun Jun 24, 2012 6:33 pm Post subject: |
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Jesito wrote:
| bob955i wrote: |
@ Jes:
Unscrew the rear trim ring - the one around the mount and you should see screws underneath. Undo these screws to remove the lens mount and take it from there. This rear ring might be very tight so use some rubber gloves or something to help grip it. Don't try and remove the leatherette as it's actually textured vulcanite...
I've got a zebra Flek 25 that dismantles this way. |
Hi Bob,
Thanks for pointing this out!. I didn't notice the fine line at the top of the mount, next to the lever, so it should be possible to remove it in the way you indicate.
However, I've tried with a rubber wrench and it's stuck as if it was soldered... 
Regards.
Jes.
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Jesito, Moderator
Jesito's backsack:
Zooms Sigma 70-300, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro, 35-70, 35-80, Vivitar 70-210 KA, Tamron 70-250.
Fixed Industar-50, , Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Pancolar 50mm, Volna-3, many Exakta lenses
DSLR SIGMA SD9 & SD14, EOS 5D, Sony A700 and NEXF3, Oly E-330, E-400, E-450, E-1
TLR/6x6/645 YashicaMat, Petri 6x45, Nettar, Franka Solida, Brilliant
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S, Ricoh, Contax, Konica TC-X , Minolta 5000, 7000i, 3Sxi, EOS 500 and CX
Rangefinders Chinon 35EE, Konica C35 auto, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3 & C4, Regula Cita III, Voigtlander Vitoret (many), Welta Welti-I, Kodak Signette 35, Zorki-4, Bessa-R & L, Minolta Weathermatic, olympus XA2
Compact Film Konica C35V, Voigtlander Vitorets, Canon Prima Super 105, Olympus XA2 and XA3
Compact Digital Olympus C-5050, Aiptek Slim 3000, Canon Powershot A540, Nikon 5200, SIGMA DP1s, Polaroid X530, IXUS55, Kodak 6490, Powershot G9 and G10
CSCCanon EOS-M, Samsung NX100 and NX210, Lumix G5, NEX-F3 |
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bob955i
Joined: 15 Apr 2007
Posts: 2495
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| Posted: Sun Jun 24, 2012 6:38 pm Post subject: |
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bob955i wrote:
The ring on my Flek was super-tight as well Jes - I dripped IPA into the space you've arrowed and kept at it until it eventually unscrewed. I didn't see any threadlock compound though when I got it off. You could also try pushing down on the ring around the mount circumference while attempting to unscrew it - like removing a stuck filter. |
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Jesito
Joined: 24 Aug 2007
Posts: 5745
Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
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| Posted: Sun Jun 24, 2012 10:21 pm Post subject: |
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Jesito wrote:
Thanks, Bob.
BTW, what's IPA you mention?. Some kind of screw unlocker?.
Regards.
Jes.
_________________
Jesito, Moderator
Jesito's backsack:
Zooms Sigma 70-300, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro, 35-70, 35-80, Vivitar 70-210 KA, Tamron 70-250.
Fixed Industar-50, , Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Pancolar 50mm, Volna-3, many Exakta lenses
DSLR SIGMA SD9 & SD14, EOS 5D, Sony A700 and NEXF3, Oly E-330, E-400, E-450, E-1
TLR/6x6/645 YashicaMat, Petri 6x45, Nettar, Franka Solida, Brilliant
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S, Ricoh, Contax, Konica TC-X , Minolta 5000, 7000i, 3Sxi, EOS 500 and CX
Rangefinders Chinon 35EE, Konica C35 auto, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3 & C4, Regula Cita III, Voigtlander Vitoret (many), Welta Welti-I, Kodak Signette 35, Zorki-4, Bessa-R & L, Minolta Weathermatic, olympus XA2
Compact Film Konica C35V, Voigtlander Vitorets, Canon Prima Super 105, Olympus XA2 and XA3
Compact Digital Olympus C-5050, Aiptek Slim 3000, Canon Powershot A540, Nikon 5200, SIGMA DP1s, Polaroid X530, IXUS55, Kodak 6490, Powershot G9 and G10
CSCCanon EOS-M, Samsung NX100 and NX210, Lumix G5, NEX-F3 |
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bob955i
Joined: 15 Apr 2007
Posts: 2495
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| Posted: Sun Jun 24, 2012 10:28 pm Post subject: |
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bob955i wrote:
| Jesito wrote: |
Thanks, Bob.
BTW, what's IPA you mention?. Some kind of screw unlocker?.
Regards.
Jes. |
Iso Propyl Alcohol, Jes - any chemist should still have it. It was formerly used for cleaning PCBs, tape machine heads etc. If there's any threadlock or stickiness in there, the IPA will help to soften and loosen it without getting everywhere as it's a mild solvent that evaporates fairly quickly. It won't harm the paint by the way. |
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Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
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| Posted: Sun Jun 24, 2012 10:33 pm Post subject: |
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Attila wrote:
Export version of Tessar on western market eastern factory couldn't use Carl Zeiss name and their lens name like Tessar. Usually these lenses has better quality control than others.
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Jesito
Joined: 24 Aug 2007
Posts: 5745
Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
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| Posted: Sun Jun 24, 2012 10:53 pm Post subject: |
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Jesito wrote:
| bob955i wrote: |
| Jesito wrote: |
Thanks, Bob.
BTW, what's IPA you mention?. Some kind of screw unlocker?.
Regards.
Jes. |
Iso Propyl Alcohol, Jes - any chemist should still have it. It was formerly used for cleaning PCBs, tape machine heads etc. If there's any threadlock or stickiness in there, the IPA will help to soften and loosen it without getting everywhere as it's a mild solvent that evaporates fairly quickly. It won't harm the paint by the way. |
Thanks! I see. And yes, I got a big bottle of it  . Just I didn't know the achronym. It's the cleaner I use for the degraded seals...
Regards.
Jes.
_________________
Jesito, Moderator
Jesito's backsack:
Zooms Sigma 70-300, Tamron 35-135 and 70-210 short, 70-210 long, 28-70 CF Macro, 35-70, 35-80, Vivitar 70-210 KA, Tamron 70-250.
Fixed Industar-50, , Tamron 24mm, Tamron 135mm, Sands Hunter 135mm, Pancolar 50mm, Volna-3, many Exakta lenses
DSLR SIGMA SD9 & SD14, EOS 5D, Sony A700 and NEXF3, Oly E-330, E-400, E-450, E-1
TLR/6x6/645 YashicaMat, Petri 6x45, Nettar, Franka Solida, Brilliant
SLR Minolta X300, Fuji STX II, Praktica VLC3, Pentax P30t, EXA500, EXA 1A, Spotmatic(2), Chinon CM-4S, Ricoh, Contax, Konica TC-X , Minolta 5000, 7000i, 3Sxi, EOS 500 and CX
Rangefinders Chinon 35EE, Konica C35 auto, Canonet 28, Yashica Lynx, FED-2, Yashica electro 35, Argus C3 & C4, Regula Cita III, Voigtlander Vitoret (many), Welta Welti-I, Kodak Signette 35, Zorki-4, Bessa-R & L, Minolta Weathermatic, olympus XA2
Compact Film Konica C35V, Voigtlander Vitorets, Canon Prima Super 105, Olympus XA2 and XA3
Compact Digital Olympus C-5050, Aiptek Slim 3000, Canon Powershot A540, Nikon 5200, SIGMA DP1s, Polaroid X530, IXUS55, Kodak 6490, Powershot G9 and G10
CSCCanon EOS-M, Samsung NX100 and NX210, Lumix G5, NEX-F3 |
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mo
Joined: 27 Aug 2009
Posts: 8979
Location: Australia
Expire: 2016-07-30
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| Posted: Mon Jun 25, 2012 8:37 am Post subject: |
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mo wrote:
This reminds me very much of my Starwars Pancolar 2/50..Yours even has the little switch at the side which you push to close the aperture.I think you have a very nice lens!! 
See how similar in body shape it is to my Pancolar
http://forum.mflenses.com/carl-zeiss-jena-pancolar-2-50-can-it-be-restored-t20607,highlight,%2Bczj+%2Bpancolar+%2B2+%2B50.html
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