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face detect

Discussion in 'Olympus Cameras' started by camerhoon, Mar 20, 2010.

  1. camerhoon

    camerhoon Guest

    28
    Feb 27, 2010
    I am confused. I can't see what face detect does. I focus using ae/af button the little square chases faces around the LCD and I take a photo focused where I asked it too.... I am actually quite happy with that :) however I am missing something... when is face detect useful or how is it useful?
     
  2. Amin Sabet

    Amin Sabet Administrator

    Apr 10, 2009
    Boston, MA (USA)
    Face detect is useful when someone's face is the intended subject in the frame. It serves two benefits: 1) It focuses on the face(s), which is especially handy when you let someone else who doesn't know how to focus and recompose use the camera; and 2) It prioritizes the proper exposure of detected faces when metering for automatic exposure, which can be a very handy substitute for dialing in exposure compensation or switching to spot metering. If you're taking photos of people and using autofocus and autoexposure, face detection is generally the way to go. I used to think it was a gimmick, but I now find it genuinely useful.
     
  3. camerhoon

    camerhoon Guest

    28
    Feb 27, 2010
    so... no good for A,M modes... have to use iauto? or have to use AF on the shutter button?
     
  4. Streetshooter

    Streetshooter Administrator Emeritus

    Dec 15, 2009
    Phila, Pa USA
    No, it works fine in A mode.....it's really a focusing device and the exposure is a second thought...
     
  5. camerhoon

    camerhoon Guest

    28
    Feb 27, 2010
    got it, had to turn the af from centre point only to random/roaming variety (which is useless on the e-p1 , unless using face detect!!!)... thankyou
     
  6. Streetshooter

    Streetshooter Administrator Emeritus

    Dec 15, 2009
    Phila, Pa USA
    Face detect will work with a fixed AF point also. I keep it centered and if I use Face Detect which is very rare, it will seek with a moving box....