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Classic Camera Repair » Maintenance & Repair » Zeiss Ikon Contina slow shutter speeds sticky!

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Bw400cn
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Username: Bw400cn

Post Number: 1
Registered: 03-2013

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Posted on Monday, March 04, 2013 - 11:24 am:

At all of my 3 Zeiss Ikon Continas the slow speeds are getting sticky.

http://www.flickr.com/photos/69541531@N04/8520321731/in/photostream

It would be the first cam repair by my own - so I ask you if it is possible for a "beginner" to do this job and what keind of tools will be needed?

Adrian
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Username: Adrian

Post Number: 322
Registered: 08-2006

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Posted on Monday, March 04, 2013 - 02:42 pm:

I did a folding Contina as the first one that actually survived my efforts, so it can be done.

The lens unscrews from the front, while the Prontor shutter is covered here:
http://pheugo.com/cameras/index.php?page=prontor

I bought a set of Wiha Picodrive screwdrivers, which were well worth the cost. The awkward bit was unscrewing the lens retaining ring - I made a bodge tool which I'm not sure I should describe here, if you can get hold of a proper lens spanner then do it.

Bw400cn
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Username: Bw400cn

Post Number: 2
Registered: 03-2013

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Posted on Monday, March 04, 2013 - 02:48 pm:

Thanks!
Small screwdrivers ain't a problem - I have them from my rc-cars ;-)
A lens spanner - where can I get one?

Do I have to open the 2 big screws inside the cam and take the complete shutter inclusive the frontplate out?

Adrian
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Username: Adrian

Post Number: 323
Registered: 08-2006

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Posted on Tuesday, March 05, 2013 - 02:58 pm:

If you are in the US or Germany, try Micro Tools (anywhere else the postage will bankrupt you...), otherwise try ebay, and be careful you don't accidentally buy one for a large format camera!

I don't know about the large screws, as my folding Contina doesn't have them - but I'm fairly sure that you should be able to get into the Prontor from the front, and dismantle it from that side. I took mine right apart, but I had an oily aperture to fix as well. It would probably be a good idea to clean and re-grease the lens threads, as it might be oil from there gunging up your slow escapement.

Bw400cn
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Username: Bw400cn

Post Number: 3
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Posted on Wednesday, March 06, 2013 - 03:01 am:

Thanks I tokk the complete shutter unit out for behind.
Took the rear lens out and came to the shutter for this side - but then I'm finished with my skills.
Try to get this tool and open it from the front side - pics will follow.

Bw400cn
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Username: Bw400cn

Post Number: 4
Registered: 03-2013

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Posted on Thursday, March 07, 2013 - 03:16 am:

I had sucsess with the first two cams!
Opened the shutter from behind - like I said above.
So I opend the four big screws to take the shutter unit apart from the case - opend the rear lens - cleaned the shutter with lighter fluid and it works like new!
was a bit fiddly to get the right position to fit the shutter unit back in the case - but I got it.
The both Contina IIa are back in buisness!
The Continamatic has a Prontor SLK Shutter which is conected with the light meter - I�m a bit affraid to do it the same way.