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Depth Of Field Calculator: Helpful guide for beginners and pros alike


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  1. iOverpriced

    iOverpriced Guest This Topic's Starter

    For many people starting out in photography, one of the hardest concepts to grasp is depth of field. A very basic explanation, is that the aperture, or how wide the blades inside your lens can open, determine how much of your picture is in focus. A lower number, means a wider opening, means less in focus.

    There is a lot more than simply aperture to consider when taking a picture, but assuming your shutter speed and ISO aren't an issue, this is a great app for planning a shot.
    You simply select your camera type, f-stop, intended lens length, and how far away the subject you're focusing on is.

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    Press calculate, and you're presented with all the information you need for setting up your shot. For someone just starting out, it's a great way for them to experiment without the frustration of getting their pictures home, only to find out none were properly focused.

    Also listed is the suggested flash GN, or guide number. This calculation is something I've had little experience with, so I haven't tested its accuracy. Flash manufacturers can exaggerate flash power, and if you're advanced enough to need this calculation to be accurate, you're probably far beyond this apps target audience.

    DOF Calculator also features several diagrams for those that learn better by looking at pictures.
    It should be noted that the near limit can't always be exact, since different lenses have different minimum focusing distances.

    [​IMG]

    [​IMG]

    Overall, it's just a great learning tool for those that want to better understand this fundamental concept in photography.

    Depth of Field Calculator
    Pros
    -Simple interface
    -Includes many popular camera brands
    -Diagrams are excellent for visualizing the data
    -Compatible with voice to text

    Cons
    -Calculations become less useful when dealing with very shallow depth of field and macro distances
     

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