Miniature IP69K Wide-Angle 2.8mm M12 Lens For Up To 1/2.7" sensors such as AR0230

Wide-Angle 2.8mm M12 Lens

The CIL329 is an automotive-grade 3MP wide-angle 2.8mm M12 lens which provides ~120° Horizontal Field of View on 1/2.5" sensors such as the AR0230. The all-glass all-metal lens is IP69K rated. Combined with a stray-light optimized design and the F/2.0 aperture, this lens is great for robotic camera systems with direct exposure to the elements.
$39.00

CIL329-F2.0-M12A650 (F/2.0 / M12A / With 650nm IRC Filter) — we try to restock quickly, contact for availability

59pcs CIL329-F2.0-M12ANIR (F/2.0 / M12A / Without Filter) in stock in the US

In stock — orders before 12 PM PST ship same day

Lens Features

Small Form Factor

A short 17.7mm total track length and weight of 3.7g is ideal for robotics.

Stray Light Optimized

Achieve excellent HDR performance with a highly optimized design.

Optical and Mechanical Specification Table

Lens Parameter Performance Detail
Part NumberCIL329
EFL2.8
F# 2.0
Resolution3MP, 2.2μm
Field of View155° @ 6.5mm image circle — Calculate FoV for your sensor
Image Circle6.8mm
Distortion-13% F-Θ
Weight5g
IR Cut-Off FilterP/N With: CIL329-F2.0-M12A650
P/N Without: CIL329-F2.0-M12ANIR
ConstructionAll-Glass with Aluminum Barrel

Mechanical Variants

Variant Description
M12A IP67, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel

Mechanical Layout

Camera Mechanical Compatibility Table*

Camera/Mount Compatibility
Commonlands CLA021 Yes
e-con Systems S-Mount 9mm-12mm tall holder
Allied Vision Alvium S-Mount No
FLIR Blackfly S Board No
iDS uEye LE No
The Imaging Source M12 Please inquire to TIS
Basler Dart S-Mount Please submit Inquiry to Basler

*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 CIL329 2.8mm M12 lens support?

The CIL329 supports 1/2.5 inch and 1/2.7 inch sensors including the ON Semiconductor AR0230. It resolves 3MP at 2.2µm pixel pitch across a 6.8mm image circle.

What is the IP rating of the CIL329?

The CIL329 is IP69K rated. That standard handles high-pressure hot water jets and steam cleaning, and the M12A barrel also carries IP67 sealing with BBAR coating.

How wide is the field of view on the CIL329?

The CIL329 gives 155° field of view at the 6.5mm image circle. That is wide enough for surround-view automotive cameras, security monitoring, and robotics navigation without moving all the way to a fisheye lens.

Is the CIL329 optimized for HDR sensors?

Yes. The CIL329 uses a stray-light optimized optical design that helps HDR sensors like the AR0230 by reducing internal reflections that cut dynamic range.

Which cameras are compatible with the CIL329 M12 lens?

The CIL329 is mechanically compatible with the Commonlands CLA021 holder with a 9-12mm tall mount and with iDS uEye LE cameras. Allied Vision Alvium, FLIR Blackfly S, and The Imaging Source boards are not compatible, and Basler Dart compatibility should be confirmed with Basler.

Does the CIL329 ship same day from the US?

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

The CIL329 is a 2.8mm wide-angle M12 lens for 1/2.7" sensors like the ON Semiconductor AR0230. At F/2.0 it gives 155° across the 6.5mm image circle. Distortion is -13% F-Theta, which is normal for this focal length class and can be corrected in software when the application needs straighter geometry.

The lens is IP69K rated and stray-light optimized. That combination matters on HDR automotive sensors like the AR0230, because internal reflections can wipe out the dynamic range you paid for. The all-glass construction sits in an aluminum barrel, and the package stays compact at 3.7g with a 17.7mm total track length.

The M12A variant ships with IP67 sealing, BBAR coating, and an AL6061 barrel. You can order CIL329-F2.0-M12A650 with the 650nm IR cut filter or CIL329-F2.0-M12ANIR without the filter. The lens resolves 3MP at 2.2µm pixel pitch across a 6.8mm image circle.

The lens is compatible with the Commonlands CLA021 lens holder with a 9–12mm tall mount and with iDS uEye LE cameras. Allied Vision Alvium, FLIR Blackfly S, and The Imaging Source boards are not mechanically compatible. Contact Basler directly for Dart compatibility. calculate your depth of field

Commonlands ships this lens same day from San Diego for orders before 12 PM PST. Contact our US-based optical engineers for automotive qualification data or volume pricing.

Similar M12 Lenses (S-Mount Lenses) for Embedded Machine Vision

CIL034-F2.3-M12A660

No Distortion 3.2mm Lens

$39.00

CIL059-F1.7-M12B650

Low Distortion 6mm M12 Lens

$49.00

CIL359-F1.6-M12A650

Automotive 5.9mm M12 Lens

$39.00

CIL122-F2.0-M12A650

IR Corrected 12mm M12 Lens

$59.00

CIL350-F2.4-M12A650

Telephoto 35mm M12 Lens

$59.00

CIL051-F2.8-M12ANIR

Telephoto 50mm M12 Lens

$79.00

CIL227-F2.5-M12B660

185°@7.8mm Fisheye M12 Lens

$39.00

CIL281-F1.8-M12A650

191°@6.4mm Fisheye Lens

$70.00

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.