Megapixel IR 1/2" Fixed-Focal Lens 4.0mm F1.6 / M7-M12F0416A

• Mega pixel Lens with IR correction
• 1/2" Fixed-Focal Lens
• Focal Length: 4mm
• Max. Aperture Ratio: 1:1.6
• Back Focal Length: 7.21mm
• Mount: CS
• Iris: Fixed

This is one kind of Mega Pixel Fixed-Focal Lens with the focal length 4mm. It has 1/2" image format and F No. 1.6. and even can reach more than 900 TV Lines, quite good for Network Camera application.