3mm Mini Fisheye M12 Lens
3mm S Mount Fisheye Lens Raspberry Pi
Miniature Fisheye Lens
3mm Mini Fisheye M12 Lens
3mm S Mount Fisheye Lens Raspberry Pi
Miniature Fisheye Lens

190° M12 Miniature Fisheye Lens for up to 1" such as IMX485 and IMX264

190°@9.1mm Fisheye M12 Lens

The CIL231 is a 3.1mm miniature fisheye lens which provides a 190° Field of View at 9.1mm Image Circle and 180° diagonal on 1/1.8" type sensors. The aperture of F/1.9 results in amazing low light performance with stunning 4K+ performance. The CIL231 is IP67 sealed.
$99.00

There are 101 units CIL231-F1.9-M12IR (With IR Cut-Off Filter) in stock in the US.

There are 49 units CIL231-F1.9-M12NIR (Without IR Cut-Off Filter) in stock in the US.

Lens Features

>180° FoV

Suitable for up to 1" Type cameras with a large 9.0mm image circle.

Low F/#

All-glass all-metal design, with F/1.9 for incredible low light performance.

IP67

IP67 rated for dust and water resistance.

Optical and Mechanical Specification Table
Lens Parameter Performance Detail
Part NumberCIL231
Format Type1/1.8"
EFL3.1mm
F#1.9 Fixed
Resolution16-20MP
Field of View118° @ 6.2mm image circle
Calculate for your sensor using our M12 Lens Calculator
Image Circle9.0mm
Distortion <6% F-Θ
See mechanical drawing for Optical, FΘ, and full TV distortion.
Weight12g
IR Cut-Off FilterP/N With: CIL231-F1.9-M12IR
P/N Without: CIL231-F1.9-M12NIR
ConstructionAll Glass, Aluminum

Mechanical Drawing

A 3mm Miniature M12 Fisheye Lens for IMX485 and IMX264
Camera Mechanical Compatibility Table*
Camera/Mount Compatibility
Commonlands Compatible Mount CLA019-LCP
e-con Systems Standard S-Mount 13mm tall mount
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.

M12 Lenses Inspected in the USA.

Inspected in the US

Camera Design Customer Support Based in the USA.

US Engineering Support

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Customizations Available

M12 Lens provider

Global Shipment

Find a Lens Using Our M12 Lens Calculator Or By Browsing Below

Low Distortion 1.8mm M12 Lens

CIL018-F2.8-M12IR

135° 4K+ low distortion M12 lens for IMX335 and AR0521
135° 4K+ low distortion M12 lens for IMX335 and AR0521
135° low distortion S-Mount Lens
No Distortion Wide Angle M12 Lens
$39.00

195°@4.7mm Fisheye M12 Lens

CIL216-F2.2-M12A650

Fisheye Lens for 1/2.3
Fisheye Lens for 1/2.3
M12 Fisheye Lens for 20MP cameras
195 degree S Mount Lens for AR1820HS
$59.00

200°@6.8mm IP67 M12 Fisheye

CIL222-F2.0-M12A650

Mini Fisheye S Mount Lens
Mini Fisheye S Mount Lens
Mini Fisheye M12 Lens
Miniature Fisheye M12 Lens
$39.00

Small 2.1mm M12 Lens

CIL821-F2.4-M12B650

A 2.1mm M12 Lens for 1/3
A 2.1mm M12 Lens for 1/3
Tiny Pinhole Lens for S-Mount Cameras
15mm TTL Short M12 Lens for Surveillance
$39.00

Low Distortion 2.2mm M12 Lens

CIL023-F2.2-M12A650

Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
$39.00

Low Distortion 2.7mm M12 Lens

CIL027-F2.8-M12IR

2.7mm M12 Lens for IMX226
2.7mm M12 Lens for IMX226
A 2.7mm M12 Lens for S-Mount FLIR
Arducam IMX477 2.7mm M12 Lens
$39.00

GoPro 3.0mm M12 Lens

CIL331-F2.5-M12A660

3.1mm Wide Angle M12 Lens
3.1mm Wide Angle M12 Lens
3mm S-Mount Lens
3mm M12 Lens
$39.00

IP67+ No Distortion 3.2mm Lens

CIL034-F2.7-M12A660

IP65 M12 Lens
IP65 M12 Lens
IP67 M12 Lens
IP67 FLIR S-Mount Lens M12 Lens
$49.00

Large Format 3.5mm M12 Lens

CIL334-F2.2-M12A660

3.5mm M12 Lens for IMX226 AR0821 IMX537
3.5mm M12 Lens for IMX226 AR0821 IMX537
S-Mount Drone Lens for Wide Angle IMX226
Wide Angle Drone Lens for IMX226
$39.00

Low Distortion 6mm M12 Lens

CIL060-F2.8-M12IR

A 6mm M12 lens for 4K+ sensors
A 6mm M12 lens for 4K+ sensors
A 6mm cctv lens for raspberry pi HQ
A 6mm S-Mount lens for 1/1.8
Low Distortion 6mm M12 Lens
$29.00

Low Distortion 6.8mm M12 Lens

CIL068-F2.5-M12A650

7mm M12 Lens
7mm M12 Lens
7mm M12 Lenses
7mm SMount Lens
$59.00

Large Format 8mm M12 Lens

CIL081-F1.9-M12NIR

The CommonLands CIL081-F1.8-M12NOIR is a 8mm F/1.8 S Mount M12 Lens for cameras such as the Raspberry Pi HQ Camera.
The CommonLands CIL081-F1.8-M12NOIR is a 8mm F/1.8 S Mount M12 Lens for cameras such as the Raspberry Pi HQ Camera.
An 8mm S-Mount Lens for Board Mount Cameras
The CommonLands CIL081-F1.8-M12NOIR 8mm M12 lens is pictured with the FLIR IMX226 camera.
$59.00

Telephoto 12mm M12 Lens

CIL125-F2.4-M12IR

Telephoto 12mm M12 Lens
Telephoto 12mm M12 Lens
Telephoto M12 Lens 12mm
Telephoto 12mm M12 Lens
Telephoto 12mm S-Mount Lens
$39.00

Telephoto 26mm M12 Lens

CIL260-F2.0-M12NIR

25mm M12 Lens
25mm M12 Lens
25mm S Mount Lens
25mm lens for FLIR Cameras
$79.00

185°@7.8mm Fisheye M12 Lens

CIL227-F2.5-M12A660

Wide Angle Fisheye Lens for S Mount
Wide Angle Fisheye Lens for S Mount
Fisheye Wide Angle M12 Lens
Board Mount Lens Wide Angle Fisheye
$49.00
135° 4K+ low distortion M12 lens for IMX335 and AR0521
135° 4K+ low distortion M12 lens for IMX335 and AR0521
135° low distortion S-Mount Lens
No Distortion Wide Angle M12 Lens
CIL018-F2.8-M12IR
Low Distortion 1.8mm M12 Lens
$39.00
Fisheye Lens for 1/2.3
Fisheye Lens for 1/2.3
M12 Fisheye Lens for 20MP cameras
195 degree S Mount Lens for AR1820HS
CIL216-F2.2-M12A650
195°@4.7mm Fisheye M12 Lens
$59.00
Mini Fisheye S Mount Lens
Mini Fisheye S Mount Lens
Mini Fisheye M12 Lens
Miniature Fisheye M12 Lens
CIL222-F2.0-M12A650
200°@6.8mm IP67 M12 Fisheye
$39.00
A 2.1mm M12 Lens for 1/3
A 2.1mm M12 Lens for 1/3
Tiny Pinhole Lens for S-Mount Cameras
15mm TTL Short M12 Lens for Surveillance
CIL821-F2.4-M12B650
Small 2.1mm M12 Lens
$39.00
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
CIL023-F2.2-M12A650
Low Distortion 2.2mm M12 Lens
$39.00
2.7mm M12 Lens for IMX226
2.7mm M12 Lens for IMX226
A 2.7mm M12 Lens for S-Mount FLIR
Arducam IMX477 2.7mm M12 Lens
CIL027-F2.8-M12IR
Low Distortion 2.7mm M12 Lens
$39.00