Field of View Calculator


Calculate Lens millimeter selection according to area size

The Field of View Calculator (or FOV) is used to help predetermine proper lens selection prior to installation. This Calculator will help with a preview to area size that is visible through the lens with entered value.



Step 1 - Select the lens format you are using.

Choose your format


Step 2 - Enter any 2 of the 3 other pieces of information.

Enter the distance to the object   Enter distance to object (in feet):   
Enter the width   Enter width of picture (in feet):     
Enter the height   Enter height of picture (in feet):   
Enter the lens   Enter size of lens (in millimeters):  
3. Press "Calculate" to get the missing information.
(Press "Reset" to clear the form.)

Lens calculator image