No-Distortion 3.2mm M12 Lens with IP67+ Rating

No Distortion 3.2mm Lens

The CIL034 is a wide-angle no-distortion 3.2mm M12 lens suitable for 12MP+ and up to 1/1.8" sensors. This IP67+ sealed lens provides 87° HFoV on 1/2.3" sensors and is great for exterior facing applications.
$39.00

832pcs CIL034-F2.3-M12A660 (F/2.3 / M12A / With 660nm IRC Filter) in stock in the US

13pcs CIL034-F2.3-M12ANIR (F/2.3 / M12A / Without Filter) in stock in the US

141pcs CIL034-F2.3-M12B660 (F/2.3 / M12B / With 660nm IRC Filter) in stock in the US

183pcs CIL034-F2.3-M12BNIR (F/2.3 / M12B / Without Filter) in stock in the US

501pcs CIL034-F2.7-M12A660 (F/2.7 / M12A / With 660nm IRC Filter) in stock in the US

27pcs CIL034-F2.7-M12ABP850 (F/2.7 / M12A / with 850nm Bandpass Filter) in stock in the US

20pcs CIL034-F2.7-M12ANIR (F/2.7 / M12A / Without Filter) in stock in the US

127pcs CIL034-F2.7-M12B660 (F/2.7 / M12B / With 660nm IRC Filter) in stock in the US

44pcs CIL034-F2.7-M12BNIR (F/2.7 / M12B / Without Filter) in stock in the US

122pcs CIL034-F4.2-M12B660 (F/4.2 / M12B / With 660nm IRC Filter) in stock in the US

23pcs CIL034-F4.2-M12BNIR (F/4.2 / M12B / Without Filter) in stock in the US

In stock — orders before 12 PM PST ship same day

Lens Features

No Distortion

0.07% distortion and wide angle FoV for a normal image.

Optical and Mechanical Specification Table

Lens Parameter Performance Detail
Part NumberCIL034
EFL3.25
F# 2.3, 2.7, 4.2
ResolutionF/2.3: 5MP, 2.4µm
F/2.7: 8-10MP, 1.85µm
F/4.2: 6MP, 2.2µm
Field of View102° @ 8.0mm image circle — Calculate FoV for your sensor
Image Circle7.8mm as designed, 8.2mm Max
Distortion'+34% F-θ
Weight5.7g
IR Cut-Off FilterP/N With: CIL034-F2.3-M12A650, CIL034-F2.7-M12A660, CIL034-F4.2-M12A650
P/N Without: CIL034-F2.3-M12ANIR, CIL034-F2.7-M12ANIR, CIL034-F4.2-M12ANIR
ConstructionHybrid Glass/Plastic with Aluminum Barrel

Mechanical Variants

Variant Description
M12A IP67, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel, 17mm diam. Cap
M12B No Ingress Protection, BBAR on L1S1, AL6061 Cap+Barrel, 14mm diam. Cap

Mechanical Layout

Camera Mechanical Compatibility Table*

*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 CIL034 no-distortion M12 lens?

The CIL034 covers sensors from 1/2.5 inch to 1/1.8 inch depending on the aperture variant. The F/2.3 version resolves 5MP at 2.4μm pixel pitch, the F/2.7 version handles 8-10MP at 1.85μm, and the F/4.2 version covers 6MP at 2.2μm. Its 8.0mm image circle gives common formats some margin.

How much distortion does the CIL034 have?

The CIL034 uses +34% F-θ pincushion distortion, which works out to about 0.07% TV distortion in the usable image area. That keeps straight lines straight enough to avoid software correction in many inspection systems.

What is the difference between the CIL034 M12A and M12B variants?

The M12A version has IP67+ sealing with a 17mm diameter cap for outdoor or washdown use. The M12B version is unsealed and uses a smaller 14mm cap for tighter mechanical envelopes.

Which aperture variant of the CIL034 should I choose?

Pick F/2.3 when you need maximum light on 5MP sensors. Pick F/2.7 when you need a middle ground for 8-10MP small-pixel sensors. Pick F/4.2 when you want more depth of field on 6MP sensors. Check depth of field at depth of field calculator

Is the CIL034 compatible with FLIR and Basler cameras?

Yes, the CIL034 is mechanically compatible with FLIR Blackfly S board-level cameras and Basler Dart S-mount cameras using standard M12x0.5 threading. It also fits Allied Vision Alvium, iDS uEye, and The Imaging Source M12 boards.

Does the CIL034 ship same day from the US?

Yes, in-stock CIL034 variants ship same day from San Diego for orders before 12 PM PST. Every lens is 100% MTF tested before shipping.

The CIL034 is a 3.25mm M12 lens with +34% F-θ pincushion distortion and 0.07% TV in the usable image area. It gives 102° diagonal field of view on an 8.0mm image circle and covers 1/2.5" to 1/1.8" sensors depending on which aperture version you choose.

This lens uses pincushion distortion on purpose. The +34% F-θ profile works out to only 0.07% TV in the usable image area, so straight lines stay straight enough for measurement and inspection without software correction. The F/2.3 version resolves 5MP at 2.4μm pixel pitch, the F/2.7 version handles 8-10MP at 1.85μm, and the F/4.2 version resolves 6MP at 2.2μm. Pick the faster aperture when light matters more, and pick the slower one when depth of field matters more.

Hybrid glass and plastic optics sit in an aluminum barrel. The M12A variant ships with IP67+ sealing and a 17mm diameter cap, while M12B is unsealed with a 14mm cap for tighter spaces. Both versions accept optional 650nm or 660nm IR cut filters.

The lens mounts directly into the Commonlands CLA018 lens holder. It is also compatible with e-con Systems with a 9-13mm holder, Allied Vision Alvium, FLIR Blackfly S, iDS uEye, The Imaging Source, and Basler Dart cameras. You can calculate field of view at field of view calculator

Commonlands ships this lens same day from San Diego before 12 PM PST. Every CIL034 is individually MTF tested at our ISO 9001:2015 facility. Contact engineering@commonlands.com if you need volume pricing or a custom aperture.

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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.