18mm M12 Lens for sensors up to 1/2.5" such as AR0230 and AR0234
Telephoto 18mm M12 Lens
In stock — orders before 12 PM PST ship same day
Lens Features
Short TTL
TTL of 20mm is great for a compact telephoto camera design.
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL178 |
| EFL | 18.0 |
| F# | 2.0 |
| Resolution | 1.5MP |
| Field of View | 18° @ 6.0mm — Calculate FoV for your sensor |
| Image Circle | 7.2mm |
| Distortion | '+0.2% TV @ 6.0mm |
| Weight | 5g |
| IR Cut-Off Filter | P/N With: CIL178-F2.0-M12A650 P/N Without: CIL178-F2.0-M12ANIR |
| Construction | Glass+Plastic, all-metal |
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 CLA018 | CLA018 |
| e-con Systems S-Mount | 10mm-15mm tall mount |
| Allied Vision Alvium S-Mount | Yes |
| FLIR Blackfly S Board | Yes |
| iDS uEye LE | Rev1.1: No, Rev1.2: Must end in C-NO |
| 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.
Frequently asked questions
What sensors work with the CIL178 18mm M12 lens?
The CIL178 supports 1/2.5 inch sensors up to 2MP including the ON Semiconductor AR0230 and AR0234. Resolution is 1.5MP across the 6.0mm image circle.
What is the field of view of the CIL178 telephoto M12 lens?
At 18mm EFL on a 1/2.5 inch sensor, the CIL178 delivers an 18° field of view. Use our calculator at https://commonlands.com/pages/camera-field-of-view-calculator to check FoV on your specific sensor.
How compact is the CIL178 18mm M12 lens?
The CIL178 has a total track length of just 20mm and weighs 5g. That makes it one of the most compact telephoto options in the M12 form factor.
Is the CIL178 compatible with FLIR Blackfly S cameras?
Yes. The CIL178 is mechanically compatible with FLIR Blackfly S board-level cameras, Allied Vision Alvium S-Mount, The Imaging Source M12, and Basler Dart S-Mount.
Does the CIL178 18mm M12 lens ship same day?
Yes. In-stock orders placed before 12 PM PST ship same day from our San Diego warehouse.
What lens holder do I need for the CIL178 with e-con Systems cameras?
Use the Commonlands CLA018 lens holder for e-con Systems and standard S-mount cameras. The CLA018 provides 10–15mm of height for proper back focal distance alignment.
Similar M12 Lenses (S-Mount Lenses) for Embedded Machine Vision
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.