Automotive 5mm M12 Lens for up to 2MP 1/2.5" sensors such as AR0234
5.5mm M12 Lens 1/2.5" 2MP
The CIL355 is an automotive-grade 5.5mm M12 lens for up to 1.3MP 1/2.7" sensors. The fast F/1.8 makes this great for ADAS and forward facing cameras.
In stock — orders before 12 PM PST ship same day
Lens Features
F/1.8
Fast F# for good low light performance
IP6K9K
Dust proof and water resistant makes this lens great for ADAS
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL355 |
| EFL | 5.5 |
| F# | 1.8 |
| Field of View | 89° @ 7.2mm image circle — Calculate FoV for your sensor |
| Image Circle | 7.3mm |
| Distortion | -9% TV |
| Weight | 5.1g |
| IR Cut-Off Filter | P/N With: CIL355-F1.8-M12A660 P/N: CIL355-F1.8-M12ANIR |
| Construction | 5G, AL6061 |
Mechanical Variants
| Variant | Description |
|---|---|
| M12A | IP6K9K, 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 - 13mm 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 | Yes |
*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 does the CIL355 5.5mm M12 lens support?
The CIL355 fits 1/2.7 inch sensors up to 1.3MP, including the ON Semiconductor AR0234. Its 7.3mm image circle covers the full 1/2.7 inch format.
Is the CIL355 rated for automotive use?
Yes. The CIL355 carries IP6K9K ingress protection, so it is dust-tight and resists high-pressure, high-temperature water jets used in automotive testing.
What is the CIL355 field of view?
The CIL355 gives 89° field of view at the 7.2mm image circle. Your exact horizontal and vertical angles depend on sensor size, so you should verify them at field of view calculator
What cameras work with the CIL355?
The CIL355 is mechanically compatible with e-con Systems, Allied Vision Alvium, FLIR Blackfly S, iDS uEye LE, The Imaging Source, and Basler Dart S-mount cameras. The Commonlands CLA019 lens holder sets the proper mounting height.
Does the CIL355 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.
Can I use the CIL355 for night vision with IR illumination?
Yes. You can order CIL355-F1.8-M12ANIR if you want the version without an IR cut filter. That version pairs well with 850nm or 940nm IR illumination for night vision work.
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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.