50mm Telephoto M12 Lens for Long-Range 2/3" Cameras Such as IMX250 and IMX392
Telephoto 50mm M12 Lens
In stock — orders before 12 PM PST ship same day
Lens Features
Large Format
Suitable for large format sensors up to 2/3" such as IMX392 and IMX250
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL051 |
| EFL | 50.0 |
| F# | 2.8 |
| Resolution | 12MP, 1.85μm |
| Field of View | 9° @ 7.5mm — Calculate FoV for your sensor |
| Image Circle | 8.8mm |
| Distortion | 0.1% TV @7.5mm |
| Weight | 18g |
| IR Cut-Off Filter | P/N With: CIL051-F2.8-M12A650; P/N Without: CIL051-F2.8-M12ANIR |
| Construction | All-glass all-metal |
Mechanical Variants
| Variant | Description |
|---|---|
| M12A | No Ingress Protection, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel |
| M12C | IP67, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel |
Mechanical Layout
Camera Mechanical Compatibility Table*
| Camera/Mount | Compatibility |
|---|---|
| e-con Systems / Standard S-Mount | 10mm-15mm tall mount |
| Allied Vision Alvium S-Mount | Yes |
| FLIR Blackfly S Board | Yes |
| iDS uEye LE | Rev1.1: Yes, Rev1.2: Yes |
| The Imaging Source M12 | Yes |
| Contact D3 Engineering | Yes |
*Mechanical compatibility only, assuming the standard M12x0.5 lens mount provided by the camera manufacturer. Please check optical compatibility separately.
Frequently asked questions
What is the longest focal length M12 lens Commonlands offers?
Commonlands offers M12 lenses up to 75mm focal length. The CIL051 at 50mm and the CIL076 at 75mm are the two longest telephoto S-mount options in the catalog.
Can the CIL051 50mm M12 lens read license plates at long range?
Yes. The 50mm focal length resolves license plates at 20 to 50 meters depending on plate size and camera sensor resolution. Low distortion means captured images need minimal geometric correction for character recognition.
What is the difference between M12A and M12C (IP67) variants of the 50mm lens?
The M12A is the standard non-sealed mount. The M12C adds IP67 ingress protection with a sealed aluminum barrel for outdoor and marine installations exposed to rain, dust, and humidity.
What sensors are compatible with the CIL051 50mm S-mount lens?
The CIL051 50mm M12 lens covers 2/3 inch format sensors with an 8.8mm image circle. Compatible sensors include the Sony IMX250, Sony IMX392, and similar global and rolling shutter sensors up to 12MP with 1.85 micron pixel pitch.
Does the CIL051 50mm M12 lens ship from the United States?
Yes. Commonlands ships all in-stock lenses same day from San Diego, California for orders placed before 12 PM PST.
Is volume pricing available for 50mm M12 telephoto lenses?
Yes. Contact Commonlands for volume pricing on M12 telephoto lenses. Production quantities ship with lot traceability and consistent lead times.
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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.