Mobotix
Mobotix MX-B041 Super Wide Lens B041, Focal Length: 4.1 mm
Super Wide lens B041 HD premium quality Focal length: 4.1 mm Aperture: f/1.8 Image angle (horizontal x vertical, on camera with 6MP sensor): 90° x 67° (up to 5MP resolution) and 110° x 70° (6MP resolution)