4mm M12 F-Theta Lens for up to 1/1.7" such as IMX226 and IMX178
F-theta Wide-Angle 4mm M12 Lens
In stock — orders before 12 PM PST ship same day
Lens Features
Low F/#
All-glass all-metal design, with F/2.0 for great low light performance.
F-Θ Distortion
Equal Angular Resolution across the FoV with 0% FΘ distortion.
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL340 |
| EFL | 4.0 |
| F# | 2.0 |
| Resolution | 12-16MP, 1.55μm |
| Field of View | 114° @ 8.0mm image circle — Calculate FoV for your sensor |
| Image Circle | 9.0mm |
| Distortion | '+0.3% F-Θ |
| Weight | 12g |
| IR Cut-Off Filter | P/N With: CIL340-F2.0-M12A650 P/N Without: CIL340-F2.0-M12ANIR |
| Construction | All Glass, Aluminum |
Mechanical Variants
| Variant | Description |
|---|---|
| M12A | No Ingress Protection, 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.
Frequently asked questions
What is F-theta distortion on the CIL340 4mm M12 lens?
F-theta distortion keeps angular resolution more even across the field of view. The CIL340 measures +0.3% F-theta, so edge pixel density stays close to center pixel density.
What sensors work with the CIL340 wide-angle M12 lens?
The CIL340 covers 1/1.7 inch sensors including the Sony IMX226 and IMX178. It resolves 12-16MP at 1.55μm pixel pitch across a 9.0mm image circle. Check coverage at field of view calculator
Is the CIL340 available in an IP67 version?
Yes, the CIL340 is available in IP67 versions. CIL340-F2.0-M12B650 and CIL340-F2.0-M12BNIR are sealed, while the standard M12A variant is unsealed.
What cameras are mechanically compatible with the CIL340?
The CIL340 mounts to Commonlands CLA019 lens holders and fits e-con Systems, Allied Vision Alvium, FLIR Blackfly S, iDS uEye LE, The Imaging Source M12, and Basler Dart S-mount board cameras.
What resolution does the CIL340 4mm M12 lens support?
The CIL340 supports 12-16MP at 1.55μm pixel pitch. Its 9.0mm image circle covers 1/1.7 inch and 1/1.8 inch sensors with margin.
Does the CIL340 M12 lens ship same day from the US?
Yes, in-stock CIL340 lenses ship same day from San Diego, California for orders placed before 12 PM PST.
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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.