1119BC-22[1/2" , 1/3"]Type: GlassFocal length(mm): f11.0F-stop: F1.9Angle of view(H x V): 30° x 23°[1/2"], 23° x 17°[1/3"]
[For]1/2": WAT-250D, 902DM2S, 902DM2, 902H2 SUPREME, 902H, 902B1/3": WAT-902DM3S, 902DM3, 902H3 SUPREME, 502B