What is a histogram? Discover the secret to perfect exposure

    | Photography for Beginners | 17/10/2012 02:00am
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    Exposure Basics Explained

    Don’t trust the camera’s rear screen to provide an accurate indication of an image’s exposure – its brightness can give a false impression. Instead, call up the histogram…

     

    What is a histogram: under-exposure

    Under-exposed
    If the histogram is concentrated on the left side of the graph, this is an indication that the picture is darker than midtone.

    What is a histogram: under-exposure

    If the actual scene or subject isn’t meant to be dark, this means the photo is under-exposed.

     

    What is a histogram: over-exposure

    Over-exposed
    If the histogram is jammed against the right side of the graph, this shows that the shot is very bright, with clipped highlights.

    What is a histogram: over-exposure

    If the scene or subject isn’t actually this bright, the photo is over-exposed.

     

    What is a histogram: well exposed

    Well-exposed
    A histogram that stretches the full width of the graph without butting up against either side indicates that the image has the widest possible tonal range, with a full range of shadows, midtones and highlights.

    What is a histogram: well exposed

    Note the slight clipping in the shot above – the patch of bright sky in the centre of the frame.

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    Posted on Wednesday, October 17th, 2012 at 2:00 am under Photography for Beginners.

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