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Thread: 'F--' ??

  1. #1

    Default 'F--' ??

    Hi,
    Encountered this only recently.
    When in M mode, F becomes '--'. No Fstops number.
    When I turn the dial, F stop did not change, remain at '--'.
    If press shutter, the picture shows F1.

    It resumes normal after a while...dunno what did I pressed...

    Anyone can help here?
    Thanks

  2. #2

    Default Re: 'F--' ??

    Quote Originally Posted by ttyh1812 View Post
    Hi,
    Encountered this only recently.
    When in M mode, F becomes '--'. No Fstops number.
    When I turn the dial, F stop did not change, remain at '--'.
    If press shutter, the picture shows F1.

    It resumes normal after a while...dunno what did I pressed...

    Anyone can help here?
    Thanks
    just a guess: maybe no memory card or lens not mounted properly

  3. #3

    Default Re: 'F--' ??

    Memory card was inserted. Cos I still can download and view the pic taken with 'F1'...
    Lens not mounted? But doesn't that mean shutter cannot be pressed then?

  4. #4
    Member gymak90's Avatar
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    Default Re: 'F--' ??

    Pls provide more details. Which cam body and lens were you using?
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  5. #5
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    Default Re: 'F--' ??

    If you're using manual lenses - the aperture cannot be recognized on your digital camera. If you cannot shoot after fixing the manual lenses - you have to find the setting inside the camera that allows you to shoot using manual aperture setting, ie. by hand.

    For Pentax, the setting is found under "Menu > Custom Settings > Using Aperture Ring > Permitted"

    Can't help you if you have other brands but should be similar.

    Even then the F number will show as F-- but at least it works; which is most important.
    Last edited by sebianos; 16th January 2010 at 09:11 PM.
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  6. #6

    Default Re: 'F--' ??

    Quote Originally Posted by gymak90 View Post
    Pls provide more details. Which cam body and lens were you using?
    A550, Kit lens 18-70

  7. #7

    Default Re: 'F--' ??

    Quote Originally Posted by ttyh1812 View Post
    A550, Kit lens 18-70
    The kit lens is 18-55...

    Try removing the lens and wiping down the contacts.
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  8. #8
    Deregistered shaoken's Avatar
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    Default Re: 'F--' ??

    Strange, this problem is rarely encountered when you mount kit lens on the body.
    I've encountered this when I used an OM lens on my 4/3 body in the past..

  9. #9

    Default Re: 'F--' ??

    Quote Originally Posted by shaoken View Post
    Strange, this problem is rarely encountered when you mount kit lens on the body.
    I've encountered this when I used an OM lens on my 4/3 body in the past..

    Oh...based on your reply and Raskae's, then it seems to be the mounting....
    Will wipe down and observe further. Thanks

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