Website: DOFMaster

DOFMaster.com gives you several easy to use tools to calculate the DOF.

DOFMaster Depth of Field Calculator
(for Windows® operating systems)

Use DOFMaster to print depth of field scales to take into the field. Rotate the dial to set the focus distance on the scale, and quickly read the near focus distance, far focus distance, and the hyperfocal distance.

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DOFMaster for iPhone / iPod touch

DOFMaster for iPhone / iPod touch for depth of field calculations on your phone. Get the app on the iTunes App Store or use the iPhone web app.

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On-line Depth of Field Calculator

Use DOFMaster on-line to experiment with depth of field settings.

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DOFMaster Hyperfocal Chart
(for Windows® operating systems)

Use DOFMaster Hyperfocal Chart to print hyperfocal distance charts for use in the field.

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On-line Depth of Field Table

Use DOFMaster Depth of Field Table to print tables for use in the field.

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DOFMaster LE Depth of Field Calculator
(for Palm OS® platform)

DOFMaster LE makes it easy. Tap three times to set f-stop, focal length, and focus distance. Read the near focus distance, far focus distance, and the hyperfocal distance.