Photo Lens -1.8mm 5mp Fisheye Camera + IR-CUT Pitch CS Lens Mount Aperture Double Filter Switcher Highlights generic brand 1.8mm 5mp Fisheye Camera + IR-CUT Pitch CS Lens Mount Aperture Double Filter Switcher Description: -1.8mm 5MP 1/2.5inch lens for cameras -Mount: M12 x 0.5; Focal length (mm): 2.4; DHV: 190 142 102 -IR-CUT Switcher filter provides excellent image during day and night, even in the dark. -Fix the cast color daytime problem, improve the brightness at night. - Change partial color focus problem, make image clear. Specification: Lens: D/f' Aperture: F1: 2.0 Focal Length (mm): 2.4 Mount: M12 x 0.5 DHV: 190 degree 142 degree 102 degree Dimension (millimeter): 18*20*20mm/0.7x0.78x0. 78inch MO D (mm): 0.2 Operation: Zoom: Fix Focas: Manual Iris: Correction Full Track Length (mm): 18.3 Rear Focal Length (mm): 3.8 IR Cut Filter Selector: 31*28*14mm / 1.22x 1.1x 0.55 inch Package Include: 1 Piece Lens 1 Piece IR Cut Filter Selector