50mm C-Mount lens for up to 1.2" sensors such as IMX541

50mm C-Mount Objektiv 1.2" 25MP

The CIL556 is a 50mm C-Mount lens for up to 25MP 1.2" sensor format type with pixel pitch of 2.74um such as IMX541. The aperture of F/2.8 is adjustable to F/16.

$249.00

17pcs CIL556-F2.8-CMANIR (F/2.8 / Without Filter / C-Mount A) in stock in the US

In stock — orders before 12 PM PST ship same day

Merkmale des Objektivs

25MP Resolution

Suitable for 2.74um pixel pitch sensors

Adjustable Aperture

An F/2.8-F/16 adjustable aperture allows for optimized performance

Tabelle der optischen und mechanischen Spezifikationen

Objektiv Parameter Leistung Detail
Teil NummerCIL556
EFL50.0
F# 2.8
Sichtfeld17° @ 19.4mm — Calculate FoV for your sensor
Bildkreis19.4mm
Verzerrung-0.02% from Rectilinear
Gewicht96g
BauwesenAlles Glas

Mechanisches 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 work with the CIL556 50mm C-mount lens?

The CIL556 fits 1.2″ format sensors with 2.74µm pixel pitch, resolving up to 25MP. The Sony IMX541 and similar sensors in the 1.2″ class are a good match for the 19.4mm image circle.

How much distortion does the CIL556 have?

Distortion is -0.02% from rectilinear. That is essentially zero, so the lens works for dimensional gauging and metrology without software correction in most systems.

Can I adjust the aperture on the CIL556?

Yes, the iris adjusts from F/2.8 to F/16. Stopping down increases depth of field and corner sharpness, but it costs you light throughput.

Is the CIL556 compatible with CS-mount cameras?

Yes, C-mount lenses work on CS-mount cameras with a 5mm spacer adapter. The adapter only accounts for the 5mm flange distance difference, so optical performance stays the same.

Does the CIL556 50mm lens ship from the United States?

Yes, Commonlands ships in-stock C-mount lenses same day from San Diego, California for orders placed before 12 PM PST.

What is the working distance range for the CIL556?

The CIL556 focuses from 250mm to infinity. If you need a closer working distance, a C-mount extension tube can help, but it will reduce infinity focus capability.

CIL556 is a 50mm C-mount lens for 25MP sensors up to 1.2" format, including the Sony IMX541 and similar 2.74µm pixel pitch imagers. The aperture adjusts from F/2.8 to F/16, so you can stop down for more depth of field and corner sharpness or open up when light is limited.

Distortion is -0.02% from rectilinear, which is about as close to zero as you will find in a compact C-mount package. That makes the lens a strong pick for dimensional measurement, gauging, and any job where straight lines need to stay straight across the full 19.4mm image circle.

The lens uses all-glass optical construction and weighs 96g. The field of view is 17° at the full image circle, which is narrow enough for part inspection at moderate working distances from 250mm to infinity. You can use field of view calculator to confirm angular coverage on your sensor.

The lens uses the standard C-mount thread of 1"-32 TPI with 17.526mm flange distance. It is compatible with Basler ace, FLIR Blackfly, Allied Vision Alvium, IDS, and The Imaging Source cameras. It also works on CS-mount cameras with a 5mm spacer adapter.

The lens ships same day from San Diego for orders placed before 12 PM PST. You can contact our US-based optical engineers for volume pricing or application-specific recommendations on depth of field. You can try depth of field calculator to estimate DoF for your working distance.

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

CIL508-F2.4-CMANIR

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CIL512-F2.8-CMANIR

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CIL513-F2.8-CMANIR

16mm C-Mount Objektiv 1.1" 12MP

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CIL514-F2.8-CMANIR

25mm C-Mount Objektiv 1.1" 12MP

$249.00

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

$249.00

CIL532-F2.0-CMANIR

12mm C-Mount-Objektiv 2/3" 12MP

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CIL536-F2.8-CMANIR

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

$149.00

Über 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.