Varifocal Zoom M12 Lens for up to 1/2.7" Sensors

7X Zoom M12 Lens 6mm-42mm

The CIL461 is is a 7X optical zoom M12 lens for up to 3MP 1/2.7" cameras. The lens has an EFL of 6mm-42mm allowing for true optical zoom with fixed focus. Contact us if you need a motorized version.

$99.00

100pcs CIL461-F2.3-M12ANIR (F/2.3 / M12A / Without Filter) in stock in the US

CIL461-F2.3-M12BNIR (F/2.3 / M12B / Without Filter) — we try to restock quickly, contact for availability

In stock — orders before 12 PM PST ship same day

Lens Features

Adjustable Focus

Adjust Focus after gluing in place

Optical and Mechanical Specification Table

Lens Parameter Performance Detail
Part NumberCIL461
F# 2.5
Resolution2MP 3um
Field of View62° @ 6.6mm image circle — Calculate FoV for your sensor
Image Circle6.6mm
Distortion-10% F-Θ
Weight57g
IR Cut-Off FilterP/N Without: CIL461-F2.3-M12ANIR
Construction7G

Mechanical Variants

Variant Description
M12A IP69K, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel

Mechanical Layout

Camera Mechanical Compatibility Table*

Camera/Mount Compatibility
Commonlands CLA019 CLA019
e-con Systems S-Mount 8mm - 10mm tall holder
Allied Vision Alvium S-Mount No
FLIR Blackfly S Board No
iDS uEye LE Rev1.1: No, Rev1.2: No
The Imaging Source M12 No
Basler Dart S-Mount Contact Basler

*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 work with the CIL461 varifocal zoom M12 lens?

The CIL461 supports 1/2.7\" sensors at up to 2MP with 3μm pixel pitch. It covers a 6.6mm image circle across the full 6mm-42mm zoom range.

How much optical zoom does the CIL461 provide?

7X optical zoom, continuously adjustable from 6mm to 42mm EFL. Focus is set after gluing the lens in place. This is true optical zoom, not digital crop.

Is the CIL461 zoom lens compatible with FLIR Blackfly S or Allied Vision Alvium cameras?

No. The CIL461 barrel is too large for direct mounting on FLIR Blackfly S, Allied Vision Alvium, and iDS uEye LE boards. It works with e-con Systems standard S-mount holders (8-10mm tall) and the Commonlands CLA019 lens holder.

What is the distortion on the CIL461 at the wide end?

At 6mm (wide), the CIL461 has -10% F-Theta distortion. For machine vision requiring geometric accuracy, consider a fixed-focal M12 lens instead. The zoom is better suited to surveillance and general monitoring.

Does the CIL461 M12 zoom lens ship from the US?

Yes. Orders placed before 12 PM PST ship same day from our San Diego warehouse.

Can the CIL461 be motorized for remote focus adjustment?

Contact Commonlands engineering at engineering@commonlands.com about motorized versions. The standard CIL461 is manual zoom with focus lock after adhesive mounting.

The CIL461 is a 6mm-42mm varifocal zoom M12 lens delivering 7X optical magnification for up to 2MP on 1/2.7" sensors. At F/2.5 and 57g, it is substantially larger and heavier than fixed-focal M12 lenses, but that tradeoff buys you real optical zoom with adjustable focus in a single package.

At the wide end (6mm), the CIL461 covers a 62° field of view across a 6.6mm image circle with -10% F-Theta distortion. That distortion level is noticeable in machine vision applications requiring straight-line accuracy, so this lens fits better in surveillance, general monitoring, and prototype work where zoom flexibility matters more than geometric precision. Use our field of view calculator at https://commonlands.com/pages/camera-field-of-view-calculator to model the FoV at different focal lengths on your specific sensor.

Construction is 7 glass elements in an aluminum barrel. The M12A variant ships with IP69K sealing, BBAR coating on the first surface, and no IR cut filter (CIL461-F2.3-M12ANIR). An M12B variant is also available. Focus is adjusted after the lens is glued in place.

Mechanically compatible with e-con Systems S-mount boards using an 8-10mm tall holder and the Commonlands CLA019 lens holder. Allied Vision Alvium, FLIR Blackfly S, iDS uEye LE, and The Imaging Source boards are not compatible due to the large barrel diameter. Contact Basler directly for Dart compatibility.

Ships same day from San Diego for orders placed before 12 PM PST. Contact Commonlands for volume pricing or to discuss motorized zoom options for automated focus applications.

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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.