1)name:camera lens; 2)focal length:35mm; 3)aperture:1/1.7; 4)mount:C; 1)name:camera lens;2)focal length:35mm;3)aperture:1/1.7;4)mount:C; We also sell our lens with 25mm 1/1.4 and C mount popularlyWe are the manufacture of cctv lens camera lens and security lens with factory price but guarantee quality.If you are interested in our lens please contact me freely.Welcome to inquiry me if you have any ...