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  Depth Of Field Calculator
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For all you photography enthusiasts out there, this script makes it a breeze to determine the field depth and amount that will be in focus in a photograph. Includes other measurements such as nearest and furthest points of focus, too.

Depth of Field Calculator
Negative Format
Lens focal length
Selected aperture
Subject distance (Meters)

Hyperfocal distance for this lens/aperture combination.
Near limit of acceptable sharpness.
Far limit of acceptable sharpness.
Total depth of field.