Olympus Stylus Pre-Flash?

Discussion in 'Photography Equipment & Products' started by tapedeck74, Mar 26, 2007.

  1. tapedeck74

    tapedeck74 TPF Noob!

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    Hi,

    I just picked up an Olympus Stylus 105 to replace my Minolta AF50 which has become "disfunctional".
    In red eye reduction flash mode it is supposed to emit pre-flash pulses, but it seems to do these pre-flashes no matter which flash mode the camera is in. Is this normal? Or is the camera defective...

    Thanks, Steve
     
  2. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    Welcome to the forum.

    Many cameras/flashes use a pre-flash for metering. The first flash is to determine the amount of light that will be reflected...then the flash fires with the shutter/exposure...with the correct amount of light. With some flash units, you can set the power to be manual controlled, which eliminates the pre-flash...but I'm not sure you if you can do that with a digi-cam, I doubt it.
     
  3. tapedeck74

    tapedeck74 TPF Noob!

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    Thanks for the reply Mike,

    This Olympus is actually a 35mm point and shoot. The thing that confuses me is that the manual states that there will be pre-flashes on red eye reduction mode but makes no mention of them when using other flash modes.
    Then again user manuals are not always know for being concise.

    My experience with cameras has always been with manual SLRs and I never used a flash, so the technology is a little alien to me. My older Minolta P&S (wife's camera) didn't do pre-flashes.
    My Lumix digicam does them but only on red eye mode.

    Thanks again for the help, Steve
     
  4. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    It's only a guess on my part, I know that modern Canon cameras use a pre-flash for metering. And yet, the theory behind it is mind boggling...I sure don't understand it all that well.
     
  5. tapedeck74

    tapedeck74 TPF Noob!

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    I called the Olympus tech support and they said that it should only pre-flash when using red-eye reduction. So, I guess that's settled. Back to the store it goes. :)
     

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