25mm C-Mount lens for up to 2/3" sensors such as IMX264 and IMX547

25mm C-Mount Lens 2/3" 5MP

The CIL525-F1.4-CMANIR is a fast 25 mm C-Mount lens for up to 5MP 2/3" sensors with 3.45um pixel pitch. The aperture is adjustable from F/1.4 to F/16 and the lens has a minimum working distance of 150mm.

$149.00

48pcs CIL525-F1.4-CMANIR (F/1.4 / Without Filter / C-Mount A) in stock in the US

CIL525-F1.4-CMRNIR (F/1.4 / Without Filter / C-Mount Ruggedized) — we try to restock quickly, contact for availability

2pcs CIL525-F2.0-CMRNIR (F/2.0 / Without Filter / C-Mount Ruggedized) in stock in the US

CIL525-F2.8-CMRNIR (F/2.8 / Without Filter / C-Mount Ruggedized) — we try to restock quickly, contact for availability

CIL525-F4.0-CMRNIR (F/4.0 / Without Filter / C-Mount Ruggedized) — we try to restock quickly, contact for availability

In stock — orders before 12 PM PST ship same day

Lens Features

Low F#

An fast maximum F# of F/1.4 for demanding high speed machine vision applications.

“R” Ruggedized Version Available

Build a vibration-resistant computer vision camera.

Optical and Mechanical Specification Table

Lens Parameter Performance Detail
Part NumberCIL525
EFL25.0
F# 1.4
ResolutionF1.4: 5MP, 3.45μm; F2.0/F2.8: 6-8MP, 2.74μm
Field of View25° @ 11mm — Calculate FoV for your sensor
Image Circle12.8mm
Distortion'<0.2%
Weight63g
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 sensors does the CIL525 25mm C-mount lens support?

The CIL525 fits 2/3″ sensors including the Sony IMX264 and IMX547. At F/1.4 it resolves 5MP at 3.45µm pixel pitch, and at F/2.0 and F/2.8 it resolves 6-8MP at 2.74µm.

What is the maximum aperture of the CIL525?

The maximum aperture is F/1.4. That gives you more light for shorter exposures in high-speed inspection.

Is the CIL525 available in a ruggedized version?

Yes, the CMR ruggedized variants, CIL525-F1.4-CMRNIR, CIL525-F2.0-CMRNIR, CIL525-F2.8-CMRNIR, and CIL525-F4.0-CMRNIR, lock the moving parts for vibration and shock resistance. You can use depth of field calculator to pick the fixed aperture.

How much distortion does the CIL525 25mm lens have?

Distortion is less than 0.2% across the 11mm field. That level is low enough for precision dimensional measurement and inspection without software correction.

Does the CIL525 ship same day from the US?

Yes, all in-stock CIL525 variants ship same day from San Diego for orders placed before 12 PM PST. You can contact Commonlands for volume pricing starting at 50 units.

What is the minimum working distance of the CIL525?

The minimum working distance is 150mm measured from the lens front to the object. The CIL525 focuses from 150mm to infinity.

CIL525 is a 25mm C-mount lens for 2/3" sensors resolving 5-8MP depending on aperture. At F/1.4 it handles 5MP with 3.45µm pixel pitch. If you stop down to F/2.0 or F/2.8, it resolves 6-8MP at 2.74µm. That range matters when inspection speed, lighting, and resolution all move together on sensors like the IMX264 and IMX547.

F/1.4 is fast for a 25mm industrial lens, so you get shorter exposures or lower gain than you would with an F/2.8 design. The field of view is 25° at 11mm, and the 12.8mm image circle covers 2/3" sensors cleanly. Distortion stays under 0.2%, which is tight enough for dimensional measurement without correction. The lens weighs 63g and uses an M30x0.5 front thread.

The CMA version adjusts from F/1.4 to F/16. The ruggedized CMR variants lock the aperture at F/1.4, F/2.0, F/2.8, or F/4.0 with the mechanical parts secured against vibration. Both versions use all-glass optical construction. The focus range runs from 150mm to infinity.

The lens uses the standard C-mount interface with 1"-32 TPI threads and 17.526mm flange distance, so it fits any C-mount industrial camera directly. You can use field of view calculator to model coverage on your sensor and estimate depth of field to pick the aperture for your working distance range.

The lens ships same day from San Diego before 12 PM PST. Five SKU options are in stock, and volume pricing starts at 50 units.

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

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CIL532-F2.0-CMANIR

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CIL536-F2.8-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.