... camera lens 2.C-mount,F1.7,2/3'' inch FA lens 3.Prompt delivery New design monofocal 35mm FA lens F1.7 manual ... 100% wel-environment glass.Specification: Model NumberABF-F3517MV-Y 2/3"Focal Length(mm)35mm Aperture(F)1.7Format(inch)2 ... lens series: (2.8mm,4mm,6mm,8mm,12mm,16mm) Certificate: New design monofocal 35mm FA lens F1.7 manual iris c mount ...