Lens Field of View Calculator

The field of view or image displayed on your TV or monitor varies depending on the size of your cameras image sensor e.g.(1/4", 1/3", 1/2") and the lens size used e.g.(4mm, 6mm etc.). This calculator can help give you a better idea of the correct lens size you will need to obtain your desired field of view.

Instructions:

Select the camera sensor size you are using.
Enter any 2 of the 3 other pieces of information.
Press the "Calculate" button to get the missing piece of information. (Press the "Reset" button to clear the form and start over.)

Select Camera sensor: 1/4 inch 1/3 inch 1/2 inch 2/3 inch 1 inch

Enter distance to object (in feet):	1
Enter width of picture (in feet):or Enter height of picture (in feet):	2
Enter size of lens (in millimeters):	3

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