4mm M12 Lens for up to 1/2.5" Sensors such as ISX031 and AR0234

Automotive 3.6mm M12 Lens

The CIL337 is a fast F/1.6 wide-angle automotive M12 lens that is ingress protected IP69K and has an EFL of 4mm. The lens is suitable for up to 3MP and is all-glass all-metal. The CIL337 is great for Automotive ADAS cameras.

$39.00

48pcs CIL337-F1.6-M12A650 (F/1.6 / M12A / With 650nm IRC Filter) in stock in the US

30pcs CIL337-F1.6-M12ANIR (F/1.6 / M12A / Without Filter) in stock in the US

In stock — orders before 12 PM PST ship same day

Lens Features

Low F/#

All-glass all-metal design, with F/1.6 for great low light and frame rate.

Optical and Mechanical Specification Table

Lens Parameter Performance Detail
Part NumberCIL337
EFL3.6
F# 1.6
Resolution3MP 2.1um
Field of View133° @ 7.2mm image circle — Calculate FoV for your sensor
Image Circle7.2mm
Distortion-13% F-Θ
Weight5g
IR Cut-Off FilterP/N With: CIL337-F1.6-M12A650
P/N Without: CIL337-F1.6-M12ANIR
Construction7G

Mechanical Variants

Variant Description
M12A IP69K, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel

Mechanical Layout

Camera Mechanical Compatibility Table*

Camera/Mount Compatibility
Commonlands CLA019 CLA019
e-con Systems S-Mount 10mm - 15mm tall holder
Allied Vision Alvium S-Mount Yes
FLIR Blackfly S Board Yes
iDS uEye LE Rev1.1: Yes, Rev1.2: Yes
The Imaging Source M12 Yes
Basler Dart S-Mount

*Mechanical compatibility only, assuming the standard M12x0.5 lens mount provided by the camera manufacturer. Please check optical compatibility separately.

Same Day Ship by 12 PM PST
US-Based Optical Engineering Support
25,000+ Stock in California
100% MTF Tested

Frequently asked questions

What sensors does the CIL337 automotive M12 lens support?

The CIL337 fits 1/2.5 inch sensors up to 3MP at 2.1μm pixel pitch, including the Sony ISX031 and ON Semiconductor AR0234. Those sensors are common in automotive ADAS camera modules.

Is the CIL337 weatherproof for exterior vehicle mounting?

Yes. The CIL337 M12A variant carries an IP69K rating, so it is sealed against dust and high-pressure water jets used in exterior vehicle testing.

What is the field of view of the CIL337 4mm M12 lens?

The CIL337 gives 133° field of view at the 7.2mm image circle. You should model the exact horizontal and vertical angles on your sensor at field of view calculator

Can I use the CIL337 for ADAS surround-view cameras?

Yes. The 133° field of view, F/1.6 aperture, and IP69K sealing make the CIL337 a strong choice for surround-view, parking assist, and other ADAS cameras that need wide coverage.

Does the CIL337 ship same day from the US?

Yes. Commonlands ships in-stock lenses same day from San Diego, California for orders placed before 12 PM PST.

What lens holders work with the CIL337?

The Commonlands CLA019 is one compatible holder for the CIL337, and other M12 mounts work as well. e-con Systems boards need a 10–15mm tall holder, while FLIR Blackfly S, Allied Vision Alvium, iDS, The Imaging Source, and Basler Dart cameras accept the M12A mount directly.

The CIL337 is a 3.6mm automotive M12 lens for ADAS camera systems. It gives you a 133° field of view across a 7.2mm image circle, so the lens covers the scene widths that surround-view and parking cameras need. At F/1.6, it also pulls in enough light for low-illumination driving scenes where slower optics start to force longer exposure or more gain.

The 7-element all-glass design resolves 3MP at 2.1μm pixel pitch on 1/2.5" sensors like the ISX031 and AR0234. Distortion is -13% F-Theta, which is normal at this field angle and easy to map inside automotive stitching pipelines. You would not pick this lens for raw metrology, but it is a good fit when coverage and low-light performance matter more than straight edges at the frame boundary.

The M12A variant is IP69K rated and sealed against high-pressure, high-temperature water jets. The AL6061 barrel and cap handle vibration and thermal cycling from -40°C to +85°C storage, and the 5g weight keeps load down in vehicle-mounted assemblies. You can use field of view calculator to model coverage on your target sensor.

You can order CIL337-F1.6-M12A650 with a 650nm IRC filter for daylight ADAS or CIL337-F1.6-M12ANIR without a filter for NIR sensing. The lens mounts to FLIR Blackfly S, Allied Vision Alvium, iDS uEye LE, The Imaging Source, and Basler Dart cameras, while e-con Systems boards need a 10–15mm tall holder. The Commonlands CLA019 holder is the recommended interface.

Commonlands ships in-stock parts same day from San Diego before 12 PM PST. In-stock quantities support both prototyping and production, and the engineering team can discuss volume pricing or custom optical changes.

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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.