190° IR-Corrected Fisheye M12 Lens for Day/Night 3-4MP Applications
190°@4.2mm IR Corrected M12 Fisheye
The CIL215 is a tiny IR Corrected M12 fisheye lens with 190°@4.2mm image circle. The short 15.4mm TTL combined with F/2.0, IP67-rating, and <1um of shift from VIS to 850nm make this lens ideal for Day/Night doorbell cameras and surveillance systems.
In stock — orders before 12 PM PST ship same day
Lens Features
190° FoV
190° FoV at 4.2mm image circle for a circular fisheye on 1/2.3″ 4:3 sensors
IR-Corrected
IR correction for RGBIR applications with <1μm shift from VIS to 850nm
IP67
IP67-rated AL6061 aluminum barrel for outdoor and exposed installations
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL215 |
| EFL | 1.5 |
| F# | 2.0 |
| Resolution | 3-4MP, 2.1μm pixel pitch |
| Field of View | 190° — Calculate FoV for your sensor |
| Image Circle | 4.1mm |
| Distortion | -16% (F-Θ) |
| Weight | 3g |
| IR Cut-Off Filter | Optional |
| Construction | 2G4P |
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 CLA024 | CLA024 |
| e-con Systems / Standard S-Mount | 8mm-15mm tall mount |
| Allied Vision Alvium S-Mount | Yes |
| FLIR Blackfly S Board | Yes |
| iDS uEye LE | Rev1.1: Yes, Rev1.2: Must use PN ending C-NO |
| 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 is the CIL215 IR-corrected M12 fisheye lens designed for?
The CIL215 targets 3-4MP sensors with 2.1μm pixels on 1/2.3″ format. Compatible sensors include the IMX219, AR2020, and OX05B1S RGBIR.
What does IR-corrected mean on the CIL215 190° M12 lens?
IR-corrected means the lens holds focus when switching between visible light and 850nm IR illumination. Focal shift stays under 1μm, which is critical for day/night cameras using IR LEDs.
What is the image circle and FoV of the CIL215 fisheye M12 lens?
The CIL215 has a 4.1mm image circle with a 190-degree FoV, which produces a circular fisheye on 1/2.3″ 4:3 sensors.
Is the CIL215 M12 fisheye compatible with FLIR Blackfly S cameras?
Yes. The CIL215 is mechanically compatible with FLIR Blackfly S Board cameras.
What is the TTL of the CIL215 190° IR-corrected M12 lens?
The CIL215 has a 15.4mm TTL, which fits compact doorbell camera and surveillance OEM housings.
Does the CIL215 M12 fisheye come with an IR cut filter?
No. The CIL215 ships only without an IR cut filter as CIL215-F2.0-M12ANIR. It is meant for RGBIR systems where filtering happens in the sensor or later in the pipeline.
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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.