Field of View Calculator

  Instructions:
  1. Select the lens format you are using.
  2. Enter any 2 of the 3 other pieces of information.
  3. Press the "Calculate" button to get the missing piece of information. (Press the "Reset" button  to clear the form and start over.)

Select lens format:    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  2
Enter height of picture (in feet):  2

Enter size of lens (in millimeters):  3