DOF Preview trouble

Discussion in 'Photography Beginners' Forum' started by Like_Clockwork, Mar 3, 2008.

  1. Like_Clockwork

    Like_Clockwork TPF Noob!

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    I'm having a problem with this. Sometimes it works sometimes it doesn't. I have a Cannon AE-1 and I'm using the normal 50mm lens. Lately every time I press the "button" in nothing happens. Is there a certain f/stop I should be on???? Or is it something else? Anyways any help is appreciated :wink:
     
  2. iflynething

    iflynething TPF Noob!

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    If you're wide open, it's not going to do anything.

    If it's a 2.8 lens and you're at 2.8, there is nothing for the aperature to close down to

    ~Michael~
     
  3. Like_Clockwork

    Like_Clockwork TPF Noob!

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    Yeah, but even on 22 nothing happens.
     
  4. Tennessee Landscape

    Tennessee Landscape TPF Noob!

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    Your DOF @ f/22 is pretty big, what are you looking for?
     
  5. Like_Clockwork

    Like_Clockwork TPF Noob!

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    Well sometimes it works and sometimes it works. I'm not particularly looking for anything. I'm just wondering why sometimes when I try and use it, it doesn't work. I tried something today and it worked, but it's kind of irratating; when I see it's not working I take the lens off then put it back on and it works I guess thats how I'll do it from now on unless anyone knows why its being lame. Thanks for the help
     
  6. Socrates

    Socrates TPF Noob!

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    Sounds like dirty contacts. I'd recommend carbon tet to clean them but that was outlawed thirty years ago! Seriously, I don't know what to suggest nowadays.
     
  7. frXnz kafka

    frXnz kafka TPF Noob!

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    Dirty contacts on a AE-1? I think not.

    Check the tabs on both the lens and the camera mount that actually move the aperture when you press the DOF preview button. Make sure they're not sticky or anything.
     
  8. Like_Clockwork

    Like_Clockwork TPF Noob!

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    alright i'll see whats wrong thanks for all the help :hail:
     

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