No Distortion 4mm M12 Lens for up to 6MP 1/1.7" such as IMX678 and IMX334
No Distortion 4.2mm M12 Lens
In stock — orders before 12 PM PST ship same day
Lens Features
Large Format
Image Circle of 8.8mm for 1/1.7″+ Sensors
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL042 |
| EFL | 4.2 |
| F# | 1.9 |
| Resolution | 5-6MP, 3μm |
| Field of View | 97° @ 9.3mm image circle — Calculate FoV for your sensor |
| Image Circle | 8.8mm as designed, 9.8mm Max |
| Distortion | -0.7% TV (4:3) @9.3mm |
| Weight | 8.7g |
| IR Cut-Off Filter | P/N With: CIL042-F1.9-M12A650 P/N Without: CIL042-F1.9-M12ANIR |
| Construction | 4G4P |
Mechanical Variants
| Variant | Description |
|---|---|
| M12A | Not Ingress Protected, BBAR on Lens 1 Surface 1, AL6061 Barrel |
Mechanical Layout
Camera Mechanical Compatibility Table*
| Camera/Mount | Compatibility |
|---|---|
| Commonlands CLA024 | CLA024 |
| e-con Systems S-Mount | 8mm-13mm tall M12 holder |
| Allied Vision Alvium S-Mount | Yes |
| FLIR Blackfly S Board | Yes |
| iDS uEye LE | Yes |
| The Imaging Source M12 | Rev1.1: Yes, Rev1.2: Must use PN ending C-NO |
| 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 work with the CIL042 no-distortion 4mm M12 lens?
The CIL042 supports 1/1.7 inch and 1/1.6 inch sensors, including the Sony IMX678, Sony IMX334, ON Semi AR0822, and Sony IMX226. Its 8.8mm designed image circle, with 9.8mm max, covers those formats with margin.
How much distortion does the CIL042 have compared to other 4mm M12 lenses?
The CIL042 measures -0.7% TV distortion at 4:3 across the 9.3mm image circle. That is much lower than the 3-5% distortion you usually see in 4mm M12 lenses, so many machine vision systems can skip correction.
What aperture options are available for the CIL042?
The CIL042 ships in three fixed-aperture versions: F/1.9, F/2.6, and F/4.0. You should pick F/1.9 for maximum light, F/2.6 for a middle ground, and F/4.0 when depth of field matters more than speed. You can compare them at depth of field calculator
Is the CIL042 compatible with FLIR Blackfly S cameras?
Yes. The CIL042 is mechanically compatible with FLIR Blackfly S board-level cameras that use standard M12x0.5 mounts. It also fits Allied Vision Alvium, iDS uEye LE, The Imaging Source M12, and Basler Dart S-Mount cameras.
Does the CIL042 4mm M12 lens ship same day from the US?
Yes. All in-stock CIL042 variants ship the same day from San Diego, California, when you place the order before 12 PM PST. Commonlands currently stocks more than 400 units across all variants in the US.
What is the image circle of the CIL042 and does it cover 1/1.6 inch sensors?
The CIL042 has an 8.8mm designed image circle and a 9.8mm maximum image circle. That coverage fully supports 1/1.7 inch sensors and also reaches 1/1.6 inch formats like the AR0822 and IMX226. You can calculate field of view at field of view calculator
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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.