4mm C-Mount Lens 1/1.8" 3MP | Commonlands
4mm C-Mount Lens 1/1.8" 3MP
The CIL570 is a 4mm C-mount lens for 1/1.8" sensors.
3MP resolution at 3.45µm pixel pitch.
Adjustable iris from F/2.0 to closed.
75mm minimum object distance.
In stock. Orders before 12 PM PT ship same day
Lens Features
3MP Resolution
3MP at 3.45µm pixel pitch, with an 8.9mm image circle.
Adjustable Iris
F/2.0 (±10% at full aperture) to closed.
75mm Minimum Object Distance
Minimum object distance measured from the front of the lens.
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL570 |
| EFL | 4.1 |
| F# | 2.0 |
| Resolution | 3MP (3.45µm pixel pitch) |
| Field of View | 66° at 5.3mm image circle 83° at 7.2mm image circle 95° at 8.9mm image circle At 4.1mm focal length. Calculate FoV for your sensor |
| Image Circle | 8.9mm (1/1.8" format) |
| Distortion | −1.9% at 5.3mm image circle −3.5% at 7.2mm image circle −5.0% at 8.9mm image circle At 4.1mm focal length |
| Construction | Glass optics AL6061 aluminum barrel |
Mechanical Variants
| Variant | Description |
|---|---|
| CMA | 1"-32 TPI C-mount 38.2mm maximum diameter 30.9±0.5mm front optical surface to flange 17.53mm flange to image plane 9.0mm rear projection 17.6mm rear barrel diameter |
Frequently asked questions
What cameras is the 4mm C-Mount Lens 1/1.8" 3MP compatible with?
Check this product's mechanical drawing and selected variant for its interface, dimensions, and required clearances. Contact engineering@commonlands.com for compatibility with your camera or assembly.
What resolution does the 4mm C-Mount Lens 1/1.8" 3MP support?
3MP (3.45µm pixel pitch)
Does Commonlands ship from the United States?
Yes. Commonlands ships from San Diego, California. Orders placed before 12 PM PT ship same day. Contact engineering@commonlands.com for support.
Can I get volume pricing?
Standard price breaks start at quantities of 50, 100, 250, 500, 1k, 2.5k, 5k, 10k, and 25k. Click "Get Volume Pricing" above or contact sales@commonlands.com.
Are .STP files and mechanical drawings available?
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.