Ingress Protected M12 Lens For Up To 1/2.3" such as ISX031 and IMX623
IP69K Wide-Angle 3.5mm M12 Lens
The CIL394 is an automotive-grade IP69K wide-angle M12 lens for up to 3MP 1/2.4" sensors with 100° HFoV on the ISX031 and IMX623. The lens is compact and all-glass for great performance over temperature.
In stock — orders before 12 PM PST ship same day
Lens Features
Small Form Factor
A short 17mm total track length and weight of 3.8g is ideal for robotics.
All Glass
Great stability over large operating temperature ranges.
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL394 |
| EFL | 3.45 |
| F# | 2.1 |
| Field of View | 135° @ 7.6mm image circle — Calculate FoV for your sensor |
| Distortion | -6.3% F-θ |
| Weight | 3.8g |
| IR Cut-Off Filter | P/N With: CIL394-F2.1-M12A650 P/N Without: CIL394-F2.1-M12ANIR |
| Construction | All-Glass with Aluminum Barrel |
Mechanical Variants
| Variant | Description |
|---|---|
| M12A | IP69K, AL6061 Barrel |
Mechanical Layout
Camera Mechanical Compatibility Table*
| Camera/Mount | Compatibility |
|---|---|
| Commonlands CLA021 | — |
| e-con Systems S-Mount | — |
| Allied Vision Alvium S-Mount | — |
| FLIR Blackfly S Board | — |
| iDS uEye LE | — |
| The Imaging Source M12 | — |
| Basler Dart S-Mount | — |
*Mechanical compatibility only, assuming the standard M12x0.5 lens mount provided by the camera manufacturer. Please check optical compatibility separately.
Frequently asked questions
What sensors work with the CIL394 IP69K M12 lens?
The CIL394 fits 1/2.3 inch and 1/2.4 inch sensors including the Sony ISX031 and IMX623. It resolves 3MP at 2.1µm pixel pitch across a 7.6mm image circle.
What is the field of view of the CIL394?
The field of view is 135 degrees at the 7.6mm image circle. You can use the Commonlands M12 lens calculator at field of view calculator if you want the exact horizontal and vertical angles on your sensor.
Is the CIL394 rated for outdoor and automotive use?
Yes, the CIL394 is IP69K rated, so it withstands high-pressure steam jets, full dust ingress protection, and temporary submersion. The sealed aluminum barrel makes sense in automotive, agricultural, and outdoor robotics environments.
What cameras are mechanically compatible with the CIL394?
The lens is mechanically compatible with e-con Systems standard S-mount boards (9-13mm holder), Allied Vision Alvium, FLIR Blackfly S board-level, iDS uEye LE (Rev1.1 and Rev1.2), and The Imaging Source M12 cameras. You can The Commonlands CLA021 lens holder works for mounting, and other compatible mounts are available.
What is the difference between the 650 and NIR variants of the CIL394?
The CIL394-F2.1-M12A650 includes a 650nm IR cut-off filter for standard daylight imaging. The CIL394-F2.1-M12ANIR ships without a filter, which keeps near-infrared sensitivity for night vision or NIR illumination.
Does the CIL394 ship same day from the US?
Yes, in-stock orders placed before 12 PM PST ship same day from our San Diego warehouse. You can contact us for volume pricing on the CIL394 for automotive programs.
Similar M12 Lenses (S-Mount Lenses) for Embedded Machine Vision
About Commonlands
Commonlands LLC designs and manufactures precision M12, C-mount, and M8 lenses for machine vision, robotics, and embedded camera systems. Based in San Diego, California, we stock inventory for same-day shipping and provide direct access to US-based optical engineers. Whether you need a single prototype lens or production volumes of 25,000+, our team supports the full lifecycle from optical design consultation through volume fulfillment.
Need help selecting the right lens for your camera module?
Contact our US-based Optical Engineers.