190° IR-Corrected Fisheye M12 Lens for Day/Night 3-4MP Applications

CIL215 is a 190-degree IR-corrected fisheye M12 lens for RGBIR day/night systems that switch between visible light and 850nm IR illumination. The 1.5mm EFL, F/2.0 aperture, and 4.1mm image circle cover 1/2.3" sensors in 4:3 format with a circular fisheye at 190 degrees FoV. Resolution target is 3-4MP with 2.1μm pixels.

The critical spec is focal shift under 1μm when the system moves from visible light to 850nm. That level keeps autofocus calibration valid at night, so a camera that cannot refocus mechanically still stays sharp.

Compatible sensors include IMX219, AR2020, and OX05B1S RGBIR. If your camera switches illumination modes and cannot move focus, this lens solves that exact problem.

Construction uses 2G4P optics in an IP67-rated AL6061 aluminum barrel. The M12A variant includes BBAR coating and is the only available mechanical version. It ships only without a filter as CIL215-F2.0-M12ANIR. The 15.4mm TTL is short enough for doorbell camera housings and compact surveillance OEM designs.

Allied Vision Alvium, FLIR Blackfly S, The Imaging Source M12 boards, and Basler Dart are mechanically compatible. iDS uEye LE Rev1.1 works directly, while Rev1.2 requires the C-NO suffix. Use e-con Systems boards with an 8-15mm tall S-mount, and use the Commonlands CLA024 holder when you need a standalone mount. Orders placed before 12 PM PST ship same day from San Diego, and STP files plus mechanical drawings are available on request.