Snow Pictures

Discussion in 'Digital SLR' started by William O'Hara, Feb 17, 2006.

  1. I'm shooting with the Pentax DL. My question
    is to everyone about the standard contrast and
    saturation settings in the camera.

    How would it effected my picture taken at 1/250
    f8 in the middle of a blizzard?

    Would an adjustment have enabled me to get more
    information in the raw file?

    thanks
    bill
     
    William O'Hara, Feb 17, 2006
    #1
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  2. William O'Hara

    Rudy Benner Guest

    I always shoot raw in snow conditions.
     
    Rudy Benner, Feb 17, 2006
    #2
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  3. William O'Hara

    Paul Furman Guest

    Boost the EC (Exposure Compensation) as high as you can without getting
    excessive blinking blown highlights.
     
    Paul Furman, Feb 17, 2006
    #3
  4. William O'Hara

    C J Southern Guest

    I can't speak for Pentax, but normally only aperture + shutter speed + ISO
    have any effect on a RAW file. In-camera post-processing settings such as
    saturation & contrast (and tint and sharpness etc) are only used when
    creating non-raw images.

    Cheers,
     
    C J Southern, Feb 17, 2006
    #4
  5. While it is true that post processing does not occur in raw, the chosen
    settings (i.e. white balance, color settings incuding levels and color
    space, etc) are stored in the raw file. Most viewers will apply these
    settings when the raw file is displayed. Somethings that DO effect the
    final image are exposure compensation and obviously the mechanical
    settings that effect the picture itself.
     
    Thomas T. Veldhouse, Feb 17, 2006
    #5
  6. You can get frostbite on important body parts doing that... ;^)
     
    Bob Harrington, Feb 17, 2006
    #6
  7. William O'Hara

    Rudy Benner Guest

    That has happened.
     
    Rudy Benner, Feb 17, 2006
    #7
  8. I can't speak for Pentax, but normally only aperture + shutter speed
    Ok. This is what I wanted to know. I process
    the pictures with an eye to adjust white balance
    and such at home to make a tiff file.

    thanks
     
    William O'Hara, Feb 18, 2006
    #8
  9. William O'Hara

    JPS Guest

    In message <43f6246f$0$782$>,
    Yes, but exposure compensation has already affected aperture and/or
    shutter speed, so aperture, shutter speed, and ISO alone determine
    exposure of any given scene.
    --
     
    JPS, Feb 18, 2006
    #9
  10. Snow scenes often mean the dynamic range is greater than can be
    satisfactorily recorded. By boosting EC until there are just
    less than "excessive" blown highlights, one maximizes the dynamic
    range that is recorded.

    Hence the above one liner is precisely correct for the question
    asked. A more generalize discussion of exposing for snow scenes
    might put it in better perspective though.

    Maximum dynamic range may or may not be suitable for all
    situations. If the shadows have important details (for example
    when taking a group picture of people standing in direct
    sunlight), it might be reasonable to allow what would otherwise
    be "excessive" blown highlights. In that case the EC should be
    high enough to see a lot of blinking areas in the snow (but not
    on the people), or maybe 1/2 to 1 stop higher than "just less
    than excessive".

    As opposed to that, if the intent is to photograph the texture
    of the snow itself, backing off 1/2 to 1 stop from the point
    where the snow is blowing out will provide better detail in the
    highlights.

    It's a judgment call, and also depends on whether it is under
    direct sunlight or if it's a cloudy day.
     
    Floyd Davidson, Feb 18, 2006
    #10
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