Compact 1.9mm Stereographic M12 Lens for Drones and IoT Cameras

The CIL819 is a 1.9mm F/2.0 wide-angle M12 lens that gives you 160° FoV at a 5.6mm image circle while keeping total weight at 2.2g. That combination is rare in a standard M12 package. If your platform cares about every gram, this lens belongs on the list for drones, UAVs, and small IoT camera modules.

The projection matters as much as the field angle. The CIL819 uses stereographic mapping instead of the equidistant or equisolid-angle behavior you see in many fisheyes, so edge objects stay more natural and the periphery does not collapse as hard. Distortion is -22% TV, but the image usually looks less cramped at the edge than a conventional fisheye with the same coverage. The lens targets 1/3.2" sensors at 3-4MP with 2.2μm pixels, including the Sony IMX179 and IMX458.

Four variants cover two mount sizes. The M08A uses an M8 thread when an M12 barrel is physically too large, and it is available either with a 650nm IRC filter or with no filter. The M12A is the standard M12 version with a 650nm filter installed, while the M12B is the M12 no-filter version. The hybrid glass/plastic construction keeps mass down without giving up much image quality at this resolution class.

Mechanical fit is the real constraint. This lens needs a 6mm-9mm tall M12 holder, which is shorter than the 9mm-13mm standard used by most industrial board cameras. The Commonlands CLA018 and e-con Systems standard S-mount boards with 6-9mm holders are confirmed fits. Allied Vision Alvium, FLIR Blackfly S, iDS uEye LE, and The Imaging Source M12 boards are mechanically incompatible, and Basler Dart users should check with Basler directly.

STP files and mechanical drawings are available on the product page. Orders placed before 12 PM PST ship same day from San Diego. Volume pricing starts at 50 units.