F-theta M12 Lens | 180°@6.6mm and 5MP for sensors such as AR0522
200°@7.2mm Fisheye M12 Lens
In stock. Orders before 12 PM PT ship same day
Lens Features
Low F/#
Fast F/1.9 for great low-light performance and framerate.
200° FoV
Ultra-wide field of view for surround-view applications.
Ingress Protected
“B” Version is IP69K for external dust and waterproofing.
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL324 |
| EFL | 2.4 |
| F# | 1.9 |
| Resolution | 2-3MP |
| Field of View | 180° @ 6.6mm image circle. Calculate FoV for your sensor |
| Image Circle | 7.1mm as designed 7.2mm maximum |
| Distortion | -12% F-Θ @6.6mm image circle |
| Weight | 7g |
| IR Cut-Off Filter | Optional |
| Construction | All Glass, Aluminum |
| Chief Ray Angle | 19° @ 7.2mm image circle |
Mechanical Variants
| Variant | Description |
|---|---|
| M12A | No Ingress Protection, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel |
| M12B | IP69K-rated, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel |
Mechanical Layout
Camera Mechanical Compatibility Table*
| Camera/Mount | Compatibility |
|---|---|
| Commonlands CLA020 | Yes |
| e-con Systems / Standard S-Mount | 13mm tall mount |
| Allied Vision Alvium S-Mount | Yes |
| FLIR Blackfly S Board | Yes |
| iDS uEye XLS | 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 sensor format is CIL324 designed for?
CIL324 is specified for 1/2.5″ sensors and uses a 7.1mm designed image circle with a 7.2mm maximum. That format lines up with moderate-resolution wide-angle camera modules.
Is CIL324 a good fit for low-light imaging?
Yes, within the limits of its resolution class. The F/1.9 aperture is fast for a fisheye and helps preserve exposure time and frame rate in dim scenes.
What does the IP69K option mean on CIL324?
The IP69K option means the M12B version is sealed for harsh environments, including dust and high-pressure water exposure. That matters when the lens sits on the outside of a vehicle or machine.
How much distortion does CIL324 have?
The lens is specified at -12% F-Theta distortion at a 6.6mm image-circle diameter. That is normal for a fisheye tuned for maximum coverage instead of straight-line preservation.
Does CIL324 include an IR cut filter?
Yes. The product data lists a 650nm IR cut, so this configuration targets visible imaging rather than deep near-IR transmission.
What resolution range is CIL324 intended to support?
CIL324 has a nominal lens rating of 2-3MP. Pairing it with a newer high-density 5MP small-format sensor requires checking MTF against your application's requirements.
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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.