4mm C-Mount Lens for up to 2/3" Sensors such as IMX546 | Industrial Vision
4mm C-Mount Lens 2/3" 5MP
The 4mm C-Mount Lens for 2/3" Format Image Sensors is a top quality lens designed specifically for industrial applications. The CIL529 model is engineered to accommodate sensors of up to 2/3 inches, making it an excellent choice for wide angle global shutter camera applications.
In stock. Orders before 12 PM PST ship same day
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL529 |
| EFL | 4.0 |
| F# | 2.8 |
| Resolution | 5MP, 3.45um |
| Field of View | 106° @ 11mm Image Circle. Calculate FoV for your sensor |
| Image Circle | 11.0mm |
| Distortion | -0.03 |
| IR Cut-Off Filter | None |
| Construction | Hybrid Glass/Plastic, Metal |
Frequently asked questions
What sensors does the CIL529 4mm C-mount lens support?
The CIL529 is listed for 2/3 inch sensors up to 5MP, including the Sony IMX546. The focal length is 4mm and the maximum aperture is F/2.8.
What is the field of view of the CIL529?
The CIL529 covers 106° at its 11mm image circle. Use the Commonlands field of view calculator to find the angle for your sensor.
How much distortion does the CIL529 have?
Measured distortion is about -3%, which is low for a 106° wide-angle lens. Calibrate the image if the system measures across the full frame.
Is the CIL529 in stock?
Not always. The page says Commonlands tries to restock quickly and asks customers to contact for availability. Check the live page before planning around immediate delivery.
Is the CIL529 an M12 lens?
No. The CIL529 is a C-mount lens. Use it with cameras that support the 1 inch-32 C-mount thread and the standard 17.526mm flange distance.
When should I choose the CIL529?
Choose the CIL529 when you need a wide 4mm field of view on a 2/3 inch 5MP global shutter camera with distortion held low for the angle.
Similar C‑Mount Lenses: 4mm – 75 mm Industrial Machine Vision Optics
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.