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Message |
    
Bob_edwards
Tinkerer
Username: Bob_edwards
Post Number: 1
Registered: 10-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, October 01, 2008 - 03:59 am: | 
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Bessa I (enclosed viewfinder) fitted with infested Vaskar lens and sticky Prontor S shutter on the bench for cleaning: The depth of field scale plate around the lens rotates once the two fixing screws are removed (one short one long). This allowed front lens element removal. Now I'm stuck - no fixings or slots to give a clue about removal of the depth of field scale, which is trapped behind the lens housing. Anybody can tell me the next steps, please?
Regards, Bob |
Msiegel
Tinkerer
Username: Msiegel
Post Number: 48
Registered: 03-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, October 03, 2008 - 05:30 am: |
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does this help?
http://www.rolandandcaroline.co.uk/repair/prontors1.html |
Pellicle
Tinkerer
Username: Pellicle
Post Number: 1
Registered: 10-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, October 06, 2008 - 03:42 am: |
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Bob
Funny you should ask, I have the same problem. I have been pondering repairing a prontor shutter in an old folder which sticks on speeds below 25th. I've read on some forums that it can perhaps be removed from the camera, the lens elements taken off and then soaked in some lighter fluid to dissolve the gunked up lubricants.
I've managed to get the front off (and the distance scale) without problems, however I've come unstuck at this point
http://farm4.static.flickr.com/3246/2913899839_fe0f73ea03.jpg
I had thought that this metal section should simply unscrew, but it doesn't (simply, it seems to want to fight about it). By the way, thats a magnet tool there, not a broken screwdriver (I'm not that rough)
http://farm4.static.flickr.com/3051/2914741886_c2bc0f39b2.jpg
In fact you can see a small mark that I put on it from my attempt. Now, even though I (thought) I was careful I've observed that I've put small dent in this ring (you can just see it in the image in the exact left hand side of the ring (the "focus" marker is pointing to it). I only noticed this upon taking and posting these images.<br> <br>
So, my questions are:
how can I best unscrew this to expose my shutter
what's the best strategy for straightening that ring? |
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