FL-BC2528-VGUV Product specifications Format size Focal length Maximum aperture ratio Iris range Mount 1, 2/3, 1/2" format 25 mm 1:2.8 2.8∼16 C 1/4" format Horizontal angle of view 1/3" format 1/2" format 2/3" format 1" format Minimum object distance Back focal length Filter size Dimensions Weight Remarks 0.23 m 22.07 mm 25.5 P=0.5 mm 33 g Optimum wavelength 365nm