Field of view (FOV): 45-Degree times33.8-Degree
Minimum focus distance: 0.20 m (0.66 ft.)
Focal length: 9.66 mm (0.38 in.)
Spatial resolution (IFOV): 3.93 mrad/2.45 mrad
F-number: 1.3
Please note this lens must be calibrated to the camera to measure temperature correctly. The user has 6 months after purchase to send the camera and lens to FLIR Service for calibration at no additional charge