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    What is Depth of Field? How aperture, focal length and focus control sharpness

    | Photography Tips | 17/07/2013 11:55am
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    3  situations when you should take control of depth of field

    3  situations when you should take control of depth of field: Landscapes

    Landscapes
    For maximum front-to-back sharpness in a landscape or cityscape, use short focal lengths and apertures of around f/16 or smaller, and focus about a third of the way into the scene. To keep the camera steady during the longer exposure, use a tripod or increase the ISO instead.

     

    3  situations when you should take control of depth of field: Portraits

    Portraits
    Whether you’re shooting people or animal portraits, the most successful shots are frequently those where the background is beyond the depth of field and consequently blurred. Longer focal lengths and wide aperture settings are a good choice here, although focusing needs to be bang-on.

     

    3  situations when you should take control of depth of field: Close-up

    Close-ups
    Depth of field decreases the closer you focus, so when it comes to photographing miniature subjects the choice of aperture becomes crucial. Even the smallest aperture available on a lens may only give a depth of field measured in millimetres when the lens is used at its closest focusing distance.

    How to choose the right aperture

    How to choose the right aperture

    Click on the infographic to see the larger version

    Set the camera to Aperture Priority or, if time allows, Manual mode. These two exposure modes give you full control over the choice of aperture, enabling you to change from a wide aperture to a small one in seconds.

    We’ve used the near extremes of this lens’s aperture range to illustrate the impact that aperture has on depth of field. In reality, the change as you move through the range isn’t so abrupt.

    PAGE 1: What is depth of field?
    PAGE 2: 3 situations when you should take control of depth of field
    PAGE 3: What is Depth of Field Preview: how to get it right in camera

    READ MORE

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    10 reasons your pictures aren’t sharp (and how to fix them)
    Master your camera’s autofocus: which AF points to use and when to use them
    DSLR Lenses: 7 questions photographers must ask about their next piece of glass


    Posted on Wednesday, July 17th, 2013 at 11:55 am under Photography Tips.

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