Aida Imaging AIDA CS4K-5.0F 5mm 12 Megapixel CS Mount Lens

The AIDA CS4K-5.0F is a fixed 5mm lens built for AIDA's 4K CS-mount cameras with 1/1.7-inch and 1/2.5-inch sensors, and it is rated to resolve a full 12 megapixels of detail rather than just being labeled '4K' without the glass to back it up. Horizontal field of view is about 87 degrees on the 1/1.7-inch sensor or 69 degrees on the 1/2.5-inch sensor, putting it firmly in wide-angle territory: a good match for a fixed camera covering a stage, a classroom, or a full conference table from a short throw distance.

At f/2.0 maximum aperture it gathers enough light for typical indoor use, and focus is set manually on the lens barrel and then left alone, which is standard for a fixed-focal-length lens in a permanent install. It is built to survive an operating range of -4 to 140 degrees F, so it holds up in an unconditioned space like a warehouse, gym, or outdoor-adjacent venue as well as a climate-controlled studio.