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Berk Sirman
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, August 14, 2004 - 02:36 pm: | 
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Hi everyone,
I received a Yashica J-5 in cosmetically ok (actually pretty good except for the scratches on bottom plate) but mechanically horrible condition. Shutter speeds are off and inconsistent on slow speeds (I have no device to measure the faster ones), I hear whirling buzzing spring sounds from inside the camera when I wind it at speeds 1/2 through 1/8 (which means, I guess, that some spring is loosening before shutter is tripped) and nearly everything on the camera need to be cleaned/lubricated. The rear cover does not lock close, the locking mechanism on the camera is stuck. I would like to experiment fixing the camera. I have no high hopes but there is nothing to lose and I think I will have great fun and learn a lot no matter what the result is. How a few questions:
-Is there a relatively easy way of fixing the slow shutter speeds? (without disassembling all the mechanism)
-Is there any trick to removing the leatherette if I need to? And what kind of glue(?) should I use when putting it back?
-Is there any way to test the higher shutter speeds at home without wasting film? I can hear until 1/15 or 1/30 (by comparison)
I hope I can get this working or find another one that is working.I think the metering system on this camera is genious.
Thanks,
Berk |
Winfried
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 15, 2004 - 02:33 am: |
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1. It is normal with most leaf shutters that you hear a buzzing sound when they are set to slower speeds and when you wind them.
2. It is not possible to fix a shutter without opening it. You can flush it with lighter fluid from outside but sometimes the problems even get worse.
3. Micro-Tools sells a tiny spade to remove leatherette. Women use a similar tool to push back their fingernail skin. To reglue leatherette, I mainly use plain household glue which sticks sufficiently but can be removed if necessary. You can also use contact cement such as Pliobond or Pattex.
4. You can try the tv screen trick described on Rick Oleson's page to check shutter speedsbut I found this does not work very good due to phosphorence of the screen, i.e. it still is lit in areas where the electron beam does not hit. Another method would be using an oscilloscope but it seems that the phosphorence problems occurs, too. |
Berk Sirman
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 15, 2004 - 03:34 am: |
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It is focal-plane shutter, not leaf shutter |
Winfried
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 15, 2004 - 02:19 pm: |
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Ooops... sorry, I faintly remembered there was a Yashica J which is a leaf shutter camera. |
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