Low Distortion M8 Lens | For up to 3MP sensors with 3μm pixels such as the AR0230

Small 2.8mm Lens

The CIL829 is a small form factor 2.8mm lens with both M12x0.5 and M8x0.35 size for up to 1/2.8" 3MP, 3μm sensors such as the AR0230. The low distortion of -1% makes this lens great for computer vision applications.

$29.00

Selected Part Number is: CIL829-F2.5-M08A650

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There are 82 units CIL829-F2.5-M08A650 (F/2.5 / M08A / With 650nm IRC Filter) in stock in the US.

There are 37 units CIL829-F2.5-M08ANIR (F/2.5 / M08A / Without Filter) in stock in the US.

There are 298 units CIL829-F2.5-M12A650 (F/2.5 / M12A / With 650nm IRC Filter) in stock in the US.

There are 66 units CIL829-F2.5-M12ANIR (F/2.5 / M12A / Without Filter) in stock in the US.

Lens Features

Tiny Form Factor

M8 and M12 variants available with 14.8mm TTL

Low Distortion

-1% Optical Distortion for wide-angle no-distortion

Optical and Mechanical Specification Table
Lens Parameter	Performance Detail
Part Number	CIL829
Format Type	1/2.8"
EFL	2.8mm
F#	2.5
Resolution	3MP, 3μm
Field of View	100° @ 6.6mm image circle Calculate for your sensor using our M12 Lens Calculator
Image Circle	6.4mm as designed, 7.0mm maximum image circle
Distortion	-1% from Rectilinear
Weight	M8 version: 1.4g
IR Cut-Off Filter	P/N With: CIL829-F2.5-M08A650 / CIL829-F2.5-M12A650 P/N Without: CIL829-F2.5-M08A650 /CIL829-F2.5-M12ANIR
Construction	1G6P

Mechanical Variants
Variant	Description
"M12A"	M12x0.5, F/2.5, BBAR on Lens 1 Surface 1, AL6061 Cap+AL6061 Barrel
"M08A"	M8x0.35, F/2.5, BBAR on Lens 1 Surface 1, AL6061 Cap+AL6061 Barrel

Mechanical Layout

Camera Mechanical Compatibility Table*
Camera/Mount	Compatibility
Commonlands Compatible Mount	CLA819
e-con Systems Standard S-Mount	5-7mm tall holder
Allied Vision Alvium S-Mount	No
FLIR Dragonfly S USB	No
iDS uEye LE	Rev1.1: No, Rev1.2: No
The Imaging Source M12	No
D3 Camera Modules	Contact D3 Engineering

*Use the M8 variant with an M12 lens mount using an adapter and low profile M12 lens mount such as CLA017.

Download .PDF Drawings, .STP Files, etc..

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

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Volume Production Ready

Here are a Few Similar Fisheye Lenses. Calculate the FoV (With Distortion!) using Our Lens Calculator.

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Q: What is a Fisheye Lens?

A: A fisheye lens is a lens with maximum field of view greater than 180° and which contains distortion. If you use a fisheye lens on a smaller sensor, then the resulting image is a wide angle image with less than 180 degree field of view, and therefore some people consider "wide angle" lenses to also be fisheye.

Q: What is an M12 lens (S-mount lens)?

Answer: An M12 lens is a compact lens with a 12 mm thread diameter, often called an S-mount lens. These lenses screws into a camera’s M12 lens mount and are commonly used in board-level cameras for embedded vision systems. M12 lenses are smaller than C/CS-mount lenses, making them ideal for space-constrained applications like robotics.

Q: What cameras can I use M12 lenses with?

A: There are many embedded vision cameras and AI cameras that are compatible with M12 leness. As long as camera's lens holder is compatible with the mechanical dimensions of the lens, the lens should focus! Please make sure to match the image circle, FoV, and resolution.

Q: How do you focus an M12 lens?

Answer: Use focus targets, then slowly thread the lens while displaying a video. Go past focus, then come back to focus. You can view our full article on how to focus camera lenses.

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