FL-CC5028A-5M035 Product specifications Format size Focal length Maximum aperture ratio Iris range Mount Min.~Max. Magnification Horizontal angle of view 1/4" format 1/3" format 1/2" format 2/3" format Working distance Back focal length Filter size Dimensions Weight Remarks 2/3, 1/1.8, 1/2, 1/3" format 50 mm 1：2.8 2.8∼22 C 0.28∼0.4X 13∼9 mm 17∼12 mm 23∼16 mm 31∼22 mm 201∼146 mm 37.16∼43.29 mm 52 P=0.75 mm 580 g Focus & Iris lock screws. 5 mega pixel (2/3"format) / 4 mega pixel (1.1"format)