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Focal Range

This is a discussion on Focal Range within the Photo Tips forums, part of the Photography Information category; Can someone tell me how I might be able to calculate focal range such that I can focus on someone ...
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Focal Range - 02-16-2010, 03:38 PM

Can someone tell me how I might be able to calculate focal range such that I can focus on someone in the center of a shot and guarantee that everyone within 5-10 feet (in front and behind) of the focal point will be in focus.

Hopefully this questions makes sense.

Thanx in advance
Angel
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02-16-2010, 03:56 PM

plug your info into this calculator and you'll get your answer. Manipulate the numbers until you get the depth of focus you want. Then shoot by the numbers.

Online Depth of Field Calculator
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02-16-2010, 04:19 PM

This is a sweet tool.

Thanx!
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02-16-2010, 04:36 PM

Remember that depth of field is 1/3 in front and 2/3 behind the point of critical focus. So if you are shooting four rows of people the focus point would be the second row back.

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The Ark was built by amateurs, The Titanic by professionals.
88mm gray filter plus whatever camera needed to activate it.
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02-16-2010, 05:04 PM

There's an app for that. PhotoBuddy if you are an iPhone user.
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