IR Corrected 6mm M12 Lens for sensors such as OX05B1S

The CIL361 is a 6.1mm IR-corrected M12 lens for 1/2.5" sensors up to 5MP with 2.2μm pixel pitch. It is a strong match for sensors like the OmniVision OX05B1S, and it keeps one optical path working from visible through near-IR. If your camera has to stay in focus in both day and night modes, this is the first lens to evaluate.

The CIL361 gives you 76° across the 7.2mm image circle. Distortion measures -7% F-Θ and -10% TV, which is normal for a wide M12 lens in this focal length range. That tradeoff is usually acceptable in security, robotics navigation, and general machine vision, but it is the wrong choice for distortion-sensitive metrology. If you need cleaner geometry, move to a longer focal length like the CIL078.

The lens uses all-glass elements in an AL6061 aluminum barrel, and the full assembly weighs 5.1g. The glass construction handles temperature swings better than plastic-heavy designs do. IR correction keeps visible light and 400nm through 900nm+ light on nearly the same focal plane, so the system does not need a refocus step between day and night operation.

The M12A variant ships without an IR cut filter as CIL361-F1.8-M12ANIR. The lens works with e-con Systems boards that use a 10-13mm tall holder, and it also fits Allied Vision Alvium, FLIR Blackfly S, iDS uEye LE, The Imaging Source, and Basler Dart cameras through the Commonlands CLA024 lens holder. You can check coverage at field of view calculator

All in-stock units ship the same day from San Diego when you order before 12 PM PST. Volume pricing is available. STP files and mechanical drawings are available through engineering@commonlands.com.