8mm C-Mount lens for up to 1.1" sensors such as IMX304 and IMX253
8mm C-Mount Lens 1.1" 12MP
The CIL508 is a 8.5mm C-Mount Lens for 12MP 1.1" sensors such as IMX253. The lens has an adjustable aperture from F/2.4-F/16 and is optimized for working distances from 80mm to infinity. This makes the lens usable for higher resolution 12MP+ sensors if used at F/3.2. Not compatible with C-to-CS mount adapters.
Lens Features
High Resolution
Suitable for 3.45um pixel pitch at F/2.8
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL508 |
| EFL | 8.0 |
| F# | 2.4 |
| Resolution | 12MP (3.45um) |
| Field of View | 96° @ 17.6mm — Calculate FoV for your sensor |
| Image Circle | 17.6mm |
| Distortion | -5% from Rectilinear @ MoD |
| Weight | 235g |
| Construction | All Glass |
Frequently asked questions
What sensor formats does the CIL508 8mm C-mount lens cover?
The CIL508 covers up to 1.1 inch sensors at 12MP with 3.45μm pixel pitch, including the Sony IMX253 and IMX304. When you stop down to F/3.2, the lens can also support sensors above 12MP.
What is the aperture range on the CIL508?
The CIL508 has an adjustable iris from F/2.4 to F/16. That range lets you balance light throughput against depth of field for your working distance and scene lighting.
How much distortion does the CIL508 8mm C-mount lens have?
The CIL508 measures -5% from rectilinear at minimum object distance. That is fine for approximate measurements and wide-area inspection, but metrology work usually wants a longer focal length with lower distortion.
Can I use the CIL508 with a C-to-CS mount adapter?
No. The CIL508 is not compatible with C-to-CS mount adapters because of its optical design. It must mount directly to a C-mount camera.
What is the minimum working distance for the CIL508?
The CIL508 focuses as close as 80mm. That short working distance is useful for conveyor inspection and compact workstations. You can estimate depth of field at depth of field calculator
Does the CIL508 ship same day from Commonlands?
Yes. Orders placed before 12 PM PST ship the same day from our San Diego warehouse. Contact Commonlands if you need volume pricing or Trioptics MTF data for the CIL508.
Similar C‑Mount Lenses: 4mm – 75 mm Industrial 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?
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