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Fallisphoto
Tinkerer
Username: Fallisphoto
Post Number: 129
Registered: 09-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 03, 2010 - 03:04 pm: | 
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Cleaned it to death and relubed it and now the "B" setting doesn't work. Acts like another 1/50th second setting. What's wrong? |
Reborn7
Tinkerer
Username: Reborn7
Post Number: 33
Registered: 11-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, June 04, 2010 - 06:09 am: |
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Hi, I have exactly the same problem with a SEIKOSHA-MXL shutter on Konica III!
Can't help you ... |
Paul_c
Tinkerer
Username: Paul_c
Post Number: 16
Registered: 02-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, June 04, 2010 - 11:05 am: |
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I have the same problem with my Aires(same shutter). I took the shutter apart for cleaning and repair.It's all functioning exept for the B.
That makes three of us, |
Tom_cheshire
Tinkerer
Username: Tom_cheshire
Post Number: 321
Registered: 04-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, June 04, 2010 - 01:36 pm: |
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Ok, I give up. Put me on the list. Same for my Yashica D. Copal MXV. |
Brianshaw
Tinkerer
Username: Brianshaw
Post Number: 83
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, June 04, 2010 - 02:10 pm: |
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Probably a misplaced spring. I'd suspect mispacement of the spring on the b-lever. Alternatively, improper lubrication that is causing the b-lever to not move properly. |
Mareklew
Tinkerer
Username: Mareklew
Post Number: 87
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, June 04, 2010 - 02:20 pm: |
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Look on the grooves of the top cam: the pin riding in the slit that has only one "step" at one very end is responsible for "B" setting. Either that lever is blocked, its spring is missing, or similar.
Marek |
Fallisphoto
Tinkerer
Username: Fallisphoto
Post Number: 130
Registered: 09-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, June 05, 2010 - 08:22 pm: |
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Mareklew,
I guess that's the problem. There is no pin sticking up there. |
Mareklew
Tinkerer
Username: Mareklew
Post Number: 88
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, June 06, 2010 - 11:59 pm: |
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Then either it got caught up under the faceplate cam, or you missed the part with the pin upon reassembly. This part is solely responsible for catching the shutter activating ring (or some part related to its movement) and preventing it from closing unless you let go of the shutter release, i.e. making B work as B.
Marek |
Paul_c
Tinkerer
Username: Paul_c
Post Number: 17
Registered: 02-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, June 07, 2010 - 02:03 am: |
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Marek,
Could You give me(us) a direction where to look for this pin riding in the slit?
regards, Paul |
Mareklew
Tinkerer
Username: Mareklew
Post Number: 89
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, June 07, 2010 - 07:50 am: |
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at 12 o'clock I'd say.
it is usually the cam close to release button/lever (not where the lever sticks out, but where it couples to the mechanics). But note, I have never disassembled a seikosha shutter.
Have a look here:
http://www.pheugo.com/cameras/index.php?page=copalmxv
This is Copal MXV (Daniel Mitchell's page), photos 2 and 3 show the cam and pin in question in a copal shutter, look at 12 o'clock.
This is Rolleicord's Compur, the cam in question is in lower left corner.
And the lever it interacts with:
(note, it is NOT the huge pin on the three-pronged element, but a flat bent lip slightly to the left of it):
Marek |
Hanskerensky
Tinkerer
Username: Hanskerensky
Post Number: 40
Registered: 05-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, June 07, 2010 - 11:40 am: |
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Hi Marek, so that would then be the lip as pointed to by the green arrow ?
 |
Mareklew
Tinkerer
Username: Mareklew
Post Number: 90
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, June 07, 2010 - 12:45 pm: |
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Hans: likely.
Paul: On a second thought, and after having a look of your photo on a better screen, I'd say that the "B" cam is the part between 7 and 9 o'clock. "B" setting activated with the speed cam full CW.
Marek |
Paul_c
Tinkerer
Username: Paul_c
Post Number: 18
Registered: 02-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, June 08, 2010 - 12:01 pm: |
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After the next roll of film I will take it apart again and give it a try.
There were several things that needed repair and the "B" not working was not a priority. First roll of film came out just fine with the rangefinder a little bitt off.I only had 1 second at the time to check for infinity with an other camera.Fixing the "B" is handy for rangefinder adjustment.
Thanks, Paul |
Mareklew
Tinkerer
Username: Mareklew
Post Number: 94
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, June 08, 2010 - 01:29 pm: |
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Actually, a properly assembled Compur/Copal shutter without the faceplate cam should run as 1s+B, i.e. shutter closes after about 1 second (or about the longest shutter time, if it isn't 1 s) or after release of the trigger, whichever comes later.
If it isn't the case in your shutter, look for a problem (missing spring or a lever) before mounting the faceplate cam.
Marek |
Fallisphoto
Tinkerer
Username: Fallisphoto
Post Number: 131
Registered: 09-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 09, 2010 - 09:12 am: |
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About the original Compur Rapid in the first post: I found what I think is that pin. Someone must have REALLY tried to force a seriously jammed shutter, because it was bent. I straightened it and found its (hair) spring lying on top of the cocking spring; the shutter works properly again. Thanks for the help! |
Fallisphoto
Tinkerer
Username: Fallisphoto
Post Number: 132
Registered: 09-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 09, 2010 - 09:16 am: |
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BTW, I misspoke in the first post -- bulb never did work in this camera. |
Fallisphoto
Tinkerer
Username: Fallisphoto
Post Number: 133
Registered: 09-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 09, 2010 - 09:23 am: |
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Hans: Yes, that's it. Push it to the right, hold the cam dial in place and cock and trip the shutter and you'll find you have your bulb setting again. There should be a fine hair spring under there that's attached somewhere a little more toward six-oclock; that spring should be engaged with a notch on the back of the pin in question. |
Hanskerensky
Tinkerer
Username: Hanskerensky
Post Number: 45
Registered: 05-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 09, 2010 - 03:13 pm: |
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Good thing you got it fixed Charles !
The Rapid on my picture was the first i ever dismantled. Had the biggest problem when re-assembling trying to get that shutter tension ring rightly connected with everything else again.
For the ones interested i put up a photo set about dismanteling that Compur Rapid on Flickr.
http://www.flickr.com/photos/29504544@N08/sets/72157623380697478/ |
Ron_g
Tinkerer
Username: Ron_g
Post Number: 30
Registered: 07-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 10, 2010 - 02:53 am: |
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That is a nice series of pics Hans,hope that I can remember where I found it if I ever need it for reference.Great work.Ron G |
