Hard Drive Calculator:

 

Instructions: Select the lens format you are using. Enter any 2 of the 3 field groups. Press the "Calculate" button to calculate the missing information. Press the "Reset" button to clear the form.

Select Lens Format: 1/4 inch 1/3 inch 1/2 inch 2/3 inch 1 inch Enter Distance to Object (in feet): Enter Width of Picture (in feet): or Enter Height of Picture (in feet): Enter Size of Lens (in millimeters): Angle of View (in degrees):

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