... )mount:M12*0.5; 1)name:day and night board lens;2)focal length:4mm;3)aperture:1 ... focal lens,Manual vari focal auto iris lens,board lens,anto iris Monofocal lens(Video)auto iris ... ,4,6,8,12,16 (mm) etc or as your requirement.The aperture of lens are ... 1.7,1/1.8,1/2.0 and so on ...M.O.D of lens ... or call me directly.Please send me specific inquiry then I will make a best PI for you,thanks! day and night board ...