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Adrian
Tinkerer
Username: Adrian
Post Number: 24
Registered: 08-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, February 08, 2007 - 10:31 am: | 
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I'm sure there's been threads on this before, but without knowing what they are called I don't know how to search for it. Can one actually buy tools for unscrewing the slotted retaining ring that secures the rear element of many lenses/shutters (eg on a Werra, Moskva, etc)? Or do most people make do with something to hand?
I'd like to remove the Prontor-SV shutter from an otherwise very nice Zeiss-Ikon Contina - works, but none of the shutter speeds seem to run at faster than about 1/5th of a second - to see if I can free it up. There are smears on the blades, which suggest to me that lube from somewhere has migrated. Anyway, I lack a proper tool for that retaining ring - what do other people use?
Adrian
(by the way, I have downloaded the guide to dismantling Prontors - another brownie point for CCRF!) |
Charlie
Tinkerer
Username: Charlie
Post Number: 53
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, February 08, 2007 - 11:35 am: |
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There are adjustable spanner wrenches usually available on Ebay. Also I think some people use what appears to be flat ended putty knives. If you click on the "articles" tab above you will find an illustrated discussion of tools. |
Pablomartinez
Tinkerer
Username: Pablomartinez
Post Number: 39
Registered: 09-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, February 08, 2007 - 02:20 pm: |
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There is a very easy way to fabricate a tool to unscrew this kind of rings.
You can find the tool that I made here: http://www.rusted.free.fr/ikonzeisscontina.html |
Rick_oleson
Tinkerer
Username: Rick_oleson
Post Number: 175
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, February 08, 2007 - 06:30 pm: |
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I usually make them from long-nose pliers by grinding the points to the shape I need. Another idea that you can find in the Canonet repair article on this site is to make one from a paint scraper. I do have one 'store bought' spanner from www.Micro-Tools.com |
Adrian
Tinkerer
Username: Adrian
Post Number: 25
Registered: 08-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, February 09, 2007 - 03:56 am: |
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That is great gentlemen, thank you very much! Lots of possibilities, and plenty to read and digest.
Like that tool a lot, Pablo. You do not let litle things (like the camera being a wreck) get in your way, do you?
Adrian |
Pablomartinez
Tinkerer
Username: Pablomartinez
Post Number: 40
Registered: 09-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, February 09, 2007 - 02:19 pm: |
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The worst it looks, the better it is!
I like to fumble in the "cameras for scrap" boxes and buy some for one buck. I have still not found one camera that I've been unable to repair. Sometimes it takes a day, sometimes a year, but ALL my repaired cameras DO work properly. |
