Compact 1.9mm Stereographic M12 Lens for Drones and IoT Cameras

Small 1.9mm M12 Lens

The CIL819 is a 1.9mm M12 Lens for up to 5MP+ 1/3" sensors with 160° FoV and stereographic distortion. The small size and low F# is great for drones.
$39.00

132pcs CIL819-F2.0-M08A650 (F/2.0 / M08A / With 650nm IRC Filter) in stock in the US

36pcs CIL819-F2.0-M08ANIR (F/2.0 / M08A / Without Filter) in stock in the US

124pcs CIL819-F2.0-M12A650 (F/2.0 / M12A / With 650nm IRC Filter) in stock in the US

201pcs CIL819-F2.0-M12BNIR (F/2.0 / M12B / Without Filter) in stock in the US

In stock — orders before 12 PM PST ship same day

Lens Features

Compact Form Factor

Small size for lightweight or hidden applications.

Stereographic Distortion

Create an image with limited distortion and natural view.

Low F#

F/2.0 for great low-light performance.

Optical and Mechanical Specification Table

Lens Parameter Performance Detail
Part NumberCIL819
EFL1.9
F# 2.0
Resolution3-4MP, 2.2µm, 1/3.2"
Field of View160° — Calculate FoV for your sensor
Image Circle5.8mm
Distortion-22% TV
Weight2.2g
IR Cut-Off Filter650nm
ConstructionHybrid Glass/Plastic, AL6061 Barrel

Mechanical Variants

Variant Description
CIL819-F2.0-M08A650 F/2.0 / M08A / With 650nm IRC Filter
CIL819-F2.0-M08ANIR F/2.0 / M08A / Without Filter
CIL819-F2.0-M12A650 F/2.0 / M12A / With 650nm IRC Filter
CIL819-F2.0-M12BNIR F/2.0 / M12B / Without Filter

Mechanical Layout

Camera Mechanical Compatibility Table*

Camera/Mount Compatibility
Commonlands CLA018 CLA018
e-con Systems S-Mount 6mm-9mm Tall Holder
Allied Vision Alvium S-Mount No
FLIR Blackfly S Board No
iDS uEye LE Rev1.1: No, Rev1.2: No
The Imaging Source M12 No
Basler Dart S-Mount Please submit inquiry to Basler

*Mechanical compatibility only, assuming the standard M12x0.5 lens mount provided by the camera manufacturer. Please check optical compatibility separately.

Same Day Ship by 12 PM PST
US-Based Optical Engineering Support
25,000+ Stock in California
100% MTF Tested

Frequently asked questions

What sensors is the CIL819 1.9mm M12 lens compatible with?

The CIL819 is rated for 1/3.2" sensors at 3-4MP with 2.2µm pixel pitch. Target sensors include the Sony IMX179 and IMX458.

What is stereographic distortion and how does it differ from fisheye projection on the CIL819?

Stereographic projection preserves angular relationships more uniformly than equidistant or equisolid-angle fisheye lenses, resulting in less peripheral compression. The CIL819 measures -22% TV distortion at 160° FoV — the image looks more natural than a standard fisheye at the same coverage angle.

What is the difference between the CIL819 M08A and M12A variants?

The M08A uses an M8 thread mount, designed for smaller board cameras where M12 would be physically too large. The M12A uses a standard M12x0.5 thread. Both are optically identical. Filter options — 650nm IRC pre-installed or no filter — are available in each mount size.

What cameras are mechanically compatible with the CIL819 small M12 lens?

The CIL819 requires a 6mm-9mm tall M12 holder — shorter than the standard 9mm-13mm range on most industrial cameras. The Commonlands CLA018 and e-con Systems S-mount boards (6-9mm holders) are confirmed compatible. Allied Vision, FLIR, iDS, and The Imaging Source cameras are mechanically incompatible.

Why is the CIL819 suitable for drone applications?

At 2.2g total weight and F/2.0 aperture, the CIL819 minimizes payload impact while providing good low-light sensitivity and 160° coverage. It is one of the lightest wide-angle M12 lenses available at this FoV and aperture class.

Where can I get STP files and drawings for the CIL819 M12 lens?

STP files and mechanical drawings are available for download on the CIL819 product page. Contact Commonlands engineering support for additional file formats or custom mechanical information.

The CIL819 is a 1.9mm F/2.0 wide-angle M12 lens with 160° FoV at 5.6mm image circle and stereographic distortion projection. It weighs 2.2g. For weight-constrained platforms — drones, UAVs, small IoT modules — that combination of wide FoV, fast aperture, and low mass is difficult to find in a standard M12 package.

Stereographic projection is not the same as typical fisheye distortion. Where equidistant or equisolid-angle fisheye lenses compress the periphery heavily relative to center, stereographic preserves angular relationships more uniformly. The result is a -22% TV distortion and a more natural-looking image at 160° FoV — peripheral objects are less squashed compared to a standard fisheye at the same field angle. Sensor format is 1/3.2", optimized for 3-4MP at 2.2µm pixel pitch. Confirmed target sensors include the Sony IMX179 and IMX458.

Four variants cover two mount sizes. M08A uses an M8 thread for ultra-compact board cameras where M12 would be physically oversized — available with a 650nm IRC filter (CIL819-F2.0-M08A650) or without (CIL819-F2.0-M08ANIR). M12A is the standard M12 version with a 650nm filter pre-installed. M12B is the M12 no-filter version. The hybrid glass/plastic optical construction keeps weight down without a significant penalty to image quality at this resolution target and pixel size.

Mechanical compatibility is limited: the CIL819 requires a 6mm-9mm tall M12 holder, shorter than the 9mm-13mm standard used by most industrial board cameras. Allied Vision Alvium, FLIR Blackfly S, iDS uEye LE, and The Imaging Source M12 boards are all mechanically incompatible. Confirmed compatible options are the Commonlands CLA018 and e-con Systems standard S-mount boards with 6-9mm holders. Basler Dart users should contact Basler directly.

STP files and mechanical drawings are available on the product page. Ships same day from San Diego before 12 PM PST. Volume pricing starts at 50 units.

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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.