Telephoto 20mm M12 Lens for up to 8MP sensor such as IMX678

Low Distortion 20mm M12 Lens

The CIL198 is a 20mm M12 lens for up to 8MP 1/1.8" sensors such as IMX678. The F/2.0 and all-glass all metal construction make this lens great for drones.

$49.00

149pcs CIL198-F1.9-M12A650 (F/1.9 / M12A / With 650nm IRC Filter) in stock in the US

47pcs CIL198-F1.9-M12ANIR (F/1.9 / M12A / Without Filter) in stock in the US

In stock. Orders before 12 PM PT ship same day

Lens Features

Low F/#

F# lower than most comparable telephoto lenses

Optical and Mechanical Specification Table

Lens Parameter Performance Detail
Part NumberCIL198
EFL20.0
F# 2.0
ResolutionNominal lens rating: 8MP, 2.0um
Field of View25° @ 8.8mm image circle. Calculate FoV for your sensor
Image Circle8.8mm as designed 9mm maximum
Distortion-0.8%
Weight10g
IR Cut-Off FilterOptional
ConstructionAll Glass, Metal
Chief Ray Angle<20°

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 CLA024 CLA024
e-con Systems S-Mount With Included Al6061 Lens Holder
Allied Vision Alvium S-Mount Yes
FLIR Blackfly S Board Yes
iDS uEye LE 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.

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

Frequently asked questions

What cameras is the Low Distortion 20mm M12 Lens compatible with?

Check this product's mechanical drawing and selected variant for its interface, dimensions, and required clearances. Contact engineering@commonlands.com for compatibility with your camera or assembly.

What resolution does the Low Distortion 20mm M12 Lens support?

Nominal lens rating: 8MP, 2.0um

Does Commonlands ship from the United States?

Yes. Commonlands ships from San Diego, California. Orders placed before 12 PM PT ship same day. Contact engineering@commonlands.com for support.

Can I get volume pricing?

Standard price breaks start at quantities of 50, 100, 250, 500, 1k, 2.5k, 5k, 10k, and 25k. Click "Get Volume Pricing" above or contact sales@commonlands.com.

Are .STP files and mechanical drawings available?

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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.