MODEL NO. FOCAL LENGTH (mm) FORMAT ANGLE OF VIEW1/3" 1/4" APERTURE (F) LENS CONSTRUCTION GFE 05843 4.2 1/4" 59° 2.8 2-1 GFE 05853 3.0 1/5" 58.8° 2.2 1-1 GFE 05852 1.5 1/9" 66.4° 3.0 1-1