3.1mm Wide Angle M12 Lens
3mm S-Mount Lens
3mm M12 Lens
3.1mm Wide Angle M12 Lens
3mm S-Mount Lens
3mm M12 Lens

Wide-Angle 3mm M12 Lens for up to 1/2" such as IMX477 and IMX577.

GoPro 3.0mm M12 Lens

The CIL331 is a wide-angle 3mm M12 lens which provides 122° Horizontal Field of View on 1/2.3" sensors. This 12MP-16MP lens provides an image comparable to a GoPro camera.
$39.00
Selected Part Number is: CIL331-F2.5-M12B650
Request Volume Pricing

There are 80 units CIL331-F2.5-M12B650 (F/2.5 / M12B / With 650nm IRC Filter) in stock in the US.

There are 54 units CIL331-F2.5-M12BNIR (F/2.5 / M12B / Without Filter) in stock in the US.

Lens Features

>150° FoV

Field of view matching a GoPro camera when used with an IMX477 sensor.

 10MP-12MP 

MTF suitable for 12MP 1/2.5" and 10MP-12MP 1/2.3" image sensors. 

Optical and Mechanical Specification Table
Lens Parameter Performance Detail
Part NumberCIL331
Format Type1/2"
EFL3.05mm
F#2.5 Fixed
Resolution10MP
Field of View122° @ 6.3mm image circle
Calculate for your sensor using our M12 Lens Calculator
Image Circle8.1mm
Distortion -3% F-Θ
Weight6.0g
IR Cut-Off FilterP/N With: CIL331-F2.5-M12A660
P/N Without: CIL331-F2.5-M12ANIR
ConstructionAll Glass, Aluminum
Mechanical Variants
Variant Description
"M12A" No Ingress Protection, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel

Mechanical Layout

IMX477 GoPro Fisheye Replacement for IMX477 M12 Lens
Camera Mechanical Compatibility Table*
Camera/Mount Compatibility
Commonlands Compatible Mount CLA024
e-con Systems Standard S-Mount 13mm 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 Yes

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

M12 Lenses C Mount Lenses.webp__PID:d39df4c6-9351-4eae-9938-992a7c9a721e

Engineering & Quality Assured

Optical Engineering for M12 Lenses.webp__PID:cabadc1d-9038-478a-9ec1-b9515597d704

US Engineering Support

M12 Lens in the US.webp__PID:de4930ea-2073-44ee-ad75-d40d9d92487e

Easy Global Shipment

M12 Lens Manufacturing.webp__PID:7f1f5e48-3df5-4feb-9fa4-5a6210d8de49

Volume Production Ready

Search all 50+ Wide Angle and Low distortion lenses and calculate the FoV with Distortion. 

Small 1.9mm M8/M12 Lens

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2mm M12 Lens stereographic
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2mm M12 lens F2
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$39.00
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IMX477 IMX577 GoPro Fisheye Lens
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3.5mm Wide-Angle M12 Lens
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Wide-Angle M12 Lens CIL335
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Wide-Angle 3.5mm M12 Lens
$49.00