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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 Sep 20, 2009 6:59 pm Post subject: Replacing the mirror damper in a Contax 139Q |
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Jesito wrote:
Besides the normal degradation with aging, the mirror damper uses to degrade as well. In my case, the Contax 139 Quartz's one was looking right but after slightly touching it, got deformed and didn't recover the normal shape:
The first step is to remove the damaged stuff. This time I've been really lucky since the damper had a base made on thin plastic film and removing it was really easy.
The usual tools: the bamboo self made tool (made upon a chopstick from my last chinese dinner). Bamboo is strong enough to remove the degraded stuff without scratching the painting.
Careful cleaning with Isoprophylic alcohool to remove the last traces of the old damper adhesive. (Be careful, the vapour is toxic).
These are the remainders:
To measure the length to cut the new damper, I use a piece of paper, that I fold until I get the right size. (Trial and error).
Now is time to cut the new damper. I use the kits from Jon Goodman (Interslice in eBay). I cut two because I'm fixing two of these Contax.
Peeling the base is somewhat difficult. Using the tip of the cutter uses to help. Be careful to place the new damper in place. Licking the adhesive uses to help.
And the final result:
Hope this would be interesting (at least for the new members).
Regards.
Jes.
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Sun Sep 20, 2009 7:04 pm Post subject: |
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Attila wrote:
Many thanks for this detailed guide, it will be useful for many of us!
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koji
Joined: 21 Jul 2008
Posts: 2106
Location: Hiroshima, Japan
Expire: 2012-12-27
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| Posted: Sun Sep 20, 2009 7:16 pm Post subject: |
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koji wrote:
Uuuuggggrrr I did the same thing more than once, but never recorded it.
Jes, you won.  
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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 Sep 20, 2009 8:36 pm Post subject: |
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Jesito wrote:
Thanks, Attila!.
Koji, I also did it many times in the past, but this one I spent some time in taking some shots to illustrate it... 
Now I have to replace the light seals as well.
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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sichko
Joined: 20 Jun 2008
Posts: 2475
Location: South West UK
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| Posted: Mon Sep 21, 2009 11:19 am Post subject: |
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sichko wrote:
Nicely done - very neat.
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Seele
Joined: 17 Apr 2009
Posts: 741
Location: Sydney Australia
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| Posted: Mon Sep 21, 2009 2:59 pm Post subject: |
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Seele wrote:
I use the light seal kit from Aki Asahi, it works a treat: the kit includes three sets, laser-cut for accuracy, and enough spare foam rubber material for other jobs too. |
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Farside
Joined: 01 Sep 2007
Posts: 6549
Location: Ireland
Expire: 2013-12-27
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| Posted: Mon Sep 21, 2009 3:50 pm Post subject: |
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Farside wrote:
Right grungy old foam that stuff. I'd never have thought it would deteriorate like that, being supposedly resistant to it, or so I believed. Probably atmospheric pollutants for 30 years.
Neatly done, Jes.
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