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  1. #1
    Usagi's Avatar
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    Apr 2007
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    Synchro-Compur MXV and exposure time adjustment

    I have two different Compur shutters which both has same problem.
    The times 1s, 1/2s and 1/4s are precise, so are times from 1/30s to 1/100s (above that, the speed doesn't change much).

    The problematic times are 1/8s and 1/15s, which both gives exactly same time as 1/100s position.

    I have gone thru several synchro-compur shutters, but these two are only ones with this problem.

    According to manual: http://benoit.suaudeau.perso.neuf.fr...air/06-03.html

    The speed of 1/15 second can be adjusted somehow, but I just can't figure how.
    The repair manual suggest for bending detent pin but it sounds a bit brutale operation.
    As far as I understood correctly, the detent pin is the one marked in Fig 4 in this page:

    http://benoit.suaudeau.perso.neuf.fr...air/04-10.html


    Anyone done this? Or is it just better to not care about that and just not to use times 1/8 and 1/15s ?

  2. #2

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    You can bend the pin but it will also break if you bend it too much so be careful with it.Be sure that the escapement is clean and do not over lubricate it,just a toothpick lightly wetted and and barely touching the bearing shaft bushings is enough.I sometimes dissasemble the escapment to clean it properly if I have a problem with the shutter speeds.Also be sure that the escapement is completely disengaged on the 1/500 setting.Ron G

  3. #3
    Usagi's Avatar
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    Thank you very much!



 

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