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.

$249.00

CIL508-F2.4-CMANIR (F/2.4 / Without Filter / C-Mount A) — we try to restock quickly, contact for availability

Lens Features

High Resolution

Suitable for 3.45um pixel pitch at F/2.8

Optical and Mechanical Specification Table

Lens Parameter Performance Detail
Part NumberCIL508
EFL8.0
F# 2.4
Resolution12MP (3.45um)
Field of View96° @ 17.6mm — Calculate FoV for your sensor
Image Circle17.6mm
Distortion-5% from Rectilinear @ MoD
Weight235g
ConstructionAll Glass

Mechanical Layout

Same Day Ship by 12 PM PST
US-Based Optical Engineering Support
25,000+ Stock in California
100% MTF Tested

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.

The CIL508 is an 8mm C-mount lens that covers 1.1" sensors at up to 12MP with 3.45μm pixel pitch. It pairs well with sensors like the Sony IMX253 and IMX304. The iris adjusts from F/2.4 to F/16, and stopping down to F/3.2 opens compatibility with sensors above 12MP. This is the lens you use when a 1.1" camera needs very wide coverage without dropping to M12 optics.

The CIL508 gives you 96° across the 17.6mm image circle. Distortion measures -5% from rectilinear at minimum object distance, which is the expected tradeoff for this much width on a large sensor. That level works for large-area inspection and approximate measurement, but precision metrology should use a longer focal length. You can check field coverage at field of view calculator

The lens uses an all-glass construction and weighs 235g. That mass comes from the larger glass required to cover 1.1" format at 8mm, not from unnecessary housing bulk. The front takes M58x0.75 filters. Focus starts at 80mm, which is close enough for PCB and product inspection on conveyors and bench stations. The optical design is not compatible with C-to-CS mount adapters, so the lens must mount directly to a C-mount camera.

The standard C-mount thread fits cameras from FLIR, Basler, Lucid Vision, Allied Vision, and similar industrial vendors. If you need a narrower field on the same sensor format, you should move to the CIL512 at 12mm or the CIL514 at 25mm.

All in-stock units ship the same day from San Diego when you order before 12 PM PST. Contact engineering@commonlands.com if you need Trioptics MTF test data, volume pricing, or help with application fit.

Similar C‑Mount Lenses: 4mm – 75 mm Industrial Optics

CIL512-F2.8-CMANIR

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CIL513-F2.8-CMANIR

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CIL514-F2.8-CMANIR

25mm C-Mount Lens 1.1" 12MP

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CIL515-F2.8-CMANIR

35mm C-Mount Lens 1.1" 12MP

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CIL516-F2.8-CMANIR

50mm C-Mount Lens 1.1" 12MP

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CIL532-F2.0-CMANIR

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CIL536-F2.8-CMANIR

50mm C-Mount Lens 2/3" 12MP

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CIL535-F2.0-CMANIR

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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.