5mm M12 Lens for Up to 1/1.7" 12MP Cameras such as IMX226

Large Format 5.1mm M12 Lens

The CIL050 is a 5mm M12 lens which provides 120° Diagonal Field of View on 1/1.7" sensors. The F/2.0 and 8MP+ resolution makes this lens optimal for robotics applications and surveillance cameras.
$59.00

CIL050-F2.0-M12A650 (F/2.0 / M12A / With 650nm IRC Filter) — we try to restock quickly, contact for availability

CIL050-F2.0-M12ANIR (F/2.0 / M12A / Without Filter) — we try to restock quickly, contact for availability

Lens Features

High Resolution

>20%@320lp/mm for up to 12MP 1/1.7″ sensors.

Optical and Mechanical Specification Table

Lens Parameter Performance Detail
Part NumberCIL050
EFL5.1
F# 2.0
Field of View120° @ 9.3mm image circle — Calculate FoV for your sensor
Image Circle9.3mm
Distortion-17% TV
Weight11g
IR Cut-Off FilterP/N With: CIL050-F2.0-M12A650
P/N Without: CIL050-F2.0-M12ANIR
ConstructionAll Glass with Aluminum Barrel

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 CLA020 CLA020
e-con Systems S-Mount 9mm-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.

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 does the CIL050 5mm M12 lens support?

The CIL050 covers sensors up to 1/1.7 inch format with 12MP resolution at the 9.3mm image circle. It is verified on the Sony IMX226 and also works well on 8MP sensors such as the IMX178. Check coverage at field of view calculator

How much distortion does the CIL050 have?

The CIL050 has -17% TV barrel distortion. That is fine for robotics navigation and surveillance, but measurement or inspection systems usually need software correction or a lower-distortion lens such as the CIL078 or CIL034.

What is the image circle of the CIL050?

The CIL050 has a 9.3mm image circle. That fully covers 1/1.7 inch sensors with margin for mechanical tolerances.

Is the CIL050 compatible with the IMX226 sensor?

Yes, the IMX226 is one of the main target sensors for the CIL050. At F/2.0, the lens resolves 12MP with more than 20% MTF at 320 lp/mm across the field.

Which lens holder fits the CIL050 M12 lens?

The Commonlands CLA020 (20mm mounting hole spacing) is one compatible option. e-con Systems standard S-mount boards need a 9-13mm tall holder, while FLIR Blackfly S and Basler Dart accept the lens directly.

Does the CIL050 ship same day from the United States?

Yes, in-stock CIL050 variants ship same day from San Diego for orders placed before 12 PM PST. Contact us if you want to confirm stock on a specific part number.

The CIL050 is a 5.1mm M12 lens for large-format 1/1.7" sensors such as the Sony IMX226. It uses a fixed F/2.0 aperture, gives 120° diagonal field of view across a 9.3mm image circle, and supports 12MP resolution, so it targets wide coverage on higher-resolution sensors.

The spec that matters here is more than 20% MTF at 320 lp/mm. That is enough resolving power for small-pixel sensors, which is why this lens can support 12MP instead of only filling the sensor with soft edge detail. Distortion is -17% TV, so the edges bend noticeably. That trade is usually fine for robotics navigation and surveillance, but it is the wrong choice for measurement or inspection unless you plan on software correction.

All-glass optics sit in an aluminum barrel with BBAR coating on the first surface. The lens weighs 11g. The product page calls out good stray light performance, and that matters when bright sources sit near the edge of a very wide field. This lens only comes in an M12A variant, so it has no ingress protection.

The lens is compatible with the Commonlands CLA020 lens holder with 20mm mounting hole spacing. It also works with e-con Systems boards using a 9-13mm holder, Allied Vision Alvium, FLIR Blackfly S, iDS uEye LE, The Imaging Source, and Basler Dart S-mount cameras. You can calculate field of view at field of view calculator

Commonlands ships this lens same day from San Diego for orders before 12 PM PST. Every CIL050 is individually MTF tested on Trioptics equipment. Contact engineering@commonlands.com if you need STP files or volume pricing.

Similar M12 Lenses (S-Mount Lenses) for Embedded Machine Vision

CIL034-F2.3-M12A660

No Distortion 3.2mm Lens

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CIL059-F1.7-M12B650

Low Distortion 6mm M12 Lens

$49.00

CIL359-F1.6-M12A650

Automotive 5.9mm M12 Lens

$39.00

CIL122-F2.0-M12A650

IR Corrected 12mm M12 Lens

$59.00

CIL350-F2.4-M12A650

Telephoto 35mm M12 Lens

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CIL051-F2.8-M12ANIR

Telephoto 50mm M12 Lens

$79.00

CIL227-F2.5-M12B660

185°@7.8mm Fisheye M12 Lens

$39.00

CIL281-F1.8-M12A650

191°@6.4mm Fisheye Lens

$70.00

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.