Select Camera:
NetCam SC 1.3MP or 5MP
NetCam SC 3MP
Distance to Object:
Size of Object:               
or   Height:
Lens Focal Length (in mm):

  1. Select camera type.
  2. Enter values in two of the
    three colored sections
    (distance/size can be in
    feet, meters, miles, km, etc.).
  3. Click Calculate.
  4. Click Reset before each
    new calculation.
  5. Missing third value will be
    calculated. Use focal length to
    determine closest lens match.