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Depth-of-Field > 16.7 - A Myth

There's a rule for depth-of-field that's set in stone.

The depth-of-field zone is 1/3 in front of the subject—and 2/3 behind the subject.

It's correct only at a few settings, however.

Don't use the myth.

Enter different values in the DOFMaster Online Depth of Field Calculator to see how the rule is wrong.