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Help! Crud on shutter - Photography

My eight year-old Canon EOS 650 was working fine until some pictures came back half black as if the shutter hadn't opened fully. I noticed a thin line of black greasy 'something' across the shutter vanes. I don't know what it is or how it got there. I've always been careful never to touch the shutter. Do I need to have a shop take care of this, or can I clean it myself? Thanks! --- John...

  1. #1

    Default Help! Crud on shutter

    My eight year-old Canon EOS 650 was working fine until some pictures came
    back half black as if the shutter hadn't opened fully. I noticed a thin
    line of black greasy 'something' across the shutter vanes. I don't know
    what it is or how it got there. I've always been careful never to touch the
    shutter. Do I need to have a shop take care of this, or can I clean it
    myself? Thanks! --- John


    John Guest

  2. #2

    Default Re: Help! Crud on shutter

    On Tue, 14 Oct 2003 00:40:10 GMT, "John" <jonnor(nospam)comcast.net>
    wrote:
     
    Since the shutter curtain is very thin and fragile you would be smart
    to let a repairman take a look..


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    Colyn Guest

  3. #3

    Default Re: Help! Crud on shutter

    On Tue, 14 Oct 2003 00:40:10 GMT, "John" <jonnor(nospam)comcast.net>
    wrote:
     

    Before you send it for repair, I'd check the shutter visually.

    Don't judge just by your pictures because from your description of
    your pics, my first guess would be that the shutter is working fine,
    but that you did not have the flash synchronized correctly (if the
    shutter speed is set too high, then pic taken with a flash will look
    exactly as you've described).

    So... with the camera back open ... Set the shutter to Bulb then
    click. Does the entire opening show? If so, then the shutter is
    opening fully. If not, then you're right, it's hosed and needs repair.

    To complete your inspection change the shutter setting to 1 sec and
    click, repeat as you move up through all the speed settings..

    If the shutter opens fully on Bulb and if it seems to be getting
    faster as you run through the settings, then the shutter is probably
    fine. It was your technique when you use a flash that is incorrect.

    Lastly, word of advice, don't clean it yourself. I just hosed a
    focusing screen in an old and very expensive SLR. I'm now trying to
    find a replacement part (the part is made to be removed, but whether
    anyone has it any longer is another story).


    -- JC
    J Guest

  4. #4

    Default Re: Help! Crud on shutter

    John - the early EOS cameras are notorious for the rubber bumber stops
    melting/liquifying over time and covering the shutter blades. It's a
    very costly repair and likely time for you to get a new body... go to
    the EOS FAQ at photonotes.org for more details.


    "John" <jonnor(nospam)comcast.net> wrote in message news:<KBHib.755055$YN5.709280sccrnsc01>... 
    Scott Guest

  5. #5

    Default Re: Help! Crud on shutter

    Thanks Scott, you certainly nailed it. I read the article you suggested and
    it described my problem exactly. As you mentioned, it probably wouldn't pay
    to have a shop install a new shutter, so I'm going to try the shutter
    cleaning procedure from the article. Thanks again. --- John


    "Scott" <com> wrote in message
    news:google.com... 


    John Guest

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