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Fredster
Tinkerer
Username: Fredster
Post Number: 1
Registered: 06-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, June 16, 2009 - 12:15 am: | 
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Howdy. Pulled apart a Contax mount Sonnar and think I want to take the aperture ring off. Got the grub screws out (tiny!) and it only spins down a few turns. Does it indeed spin off to the back of the lens? Is there a secret? Thanks. |
Rick_oleson
Tinkerer
Username: Rick_oleson
Post Number: 918
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, June 16, 2009 - 08:11 pm: |
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prewar? postwar? 50mm? 85mm? |
Fredster
Tinkerer
Username: Fredster
Post Number: 3
Registered: 06-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 17, 2009 - 12:50 am: |
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Sorry. It's a postwar Opton 50mm F:2 I can spin it forward about 4 turns and it hangs up. The chromed bit the filter threads onto came off fine. It's soaking overnight - should I keep trying to get it to go forward? Thanks. |
Rick_oleson
Tinkerer
Username: Rick_oleson
Post Number: 919
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 17, 2009 - 04:40 am: |
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I have a sketch for the 50/2.0 Carl Zeiss (late postwar) that I can send you - I don't see the grub screws in the sketch though (I made it 16 years ago, so I can't rely on memory for help). Maybe it will help if you see it? |
Fredster
Tinkerer
Username: Fredster
Post Number: 4
Registered: 06-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 17, 2009 - 09:50 am: |
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Rick, that would be great. It's identical to the example Mike takes apart at http://elekm.net/zeiss-ikon/repair/sonnar-clean.html Mine came apart nicely except for getting this ring off. |
Fredster
Tinkerer
Username: Fredster
Post Number: 5
Registered: 06-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 17, 2009 - 11:52 pm: |
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Thank you Rick for your help. I have it all apart and now feel most expert. With any luck I'll still feel that way in a few days when it's back together. |
