Wide-Angle 3mm M12 Lens for up to 1/2.3" such as IMX477 and IMX577.

Wide-Angle 3.2mm M12 Lens

The CIL391 is a wide-angle 3mm M12 lens which provides 119° Horizontal Field of View on 1/2.3" sensors. This 12MP+ lens provides an image comparable to a GoPro camera.

$39.00

33pcs CIL391-F2.2-M12ABR650 (F/2.2 / M12A / Blueglass Reflective 650nm IRCF) in stock in the US

99pcs CIL391-F2.8-M12A660 (F/2.8 / M12A / With 660nm IRC Filter) in stock in the US

CIL391-F2.8-M12ANIR (F/2.8 / M12A / Without Filter) — we try to restock quickly, contact for availability

In stock — orders before 12 PM PST ship same day

Merkmale des Objektivs

10MP-12MP

Crisp Images for demanding 1.4um pixel size

Tabelle der optischen und mechanischen Spezifikationen

Objektiv Parameter Leistung Detail
Teil NummerCIL391
EFL3.25
F# 2.8
Sichtfeld154° @ 7.9mm image circle — Calculate FoV for your sensor
Bildkreis7.9mm
Verzerrung-16% TV
Gewicht5g
IR-Cut-Off-FilterOptional
BauwesenAll-Glass
Chief Ray Angle13.9°

Tabelle zur mechanischen Kompatibilität der Kamera*

*Nur mechanische Kompatibilität, unter der Annahme, dass der Standard M12x0,5 Objektivanschluss vom Kamerahersteller bereitgestellt wird. Bitte prüfen Sie die optische Kompatibilität separat.

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 CIL391 GoPro replacement lens?

The CIL391 supports 1/2.3\" sensors including the Sony IMX477 and IMX577, resolving 12MP at 1.55μm pixel pitch. The 7.9mm image circle fully covers 1/2.3\" format.

How wide is the CIL391 field of view?

154° total field of view at the 7.9mm image circle. On 1/2.3\" sensors, this gives you wide-angle coverage comparable to a GoPro camera module.

How much distortion does the CIL391 have?

The CIL391 has -16% TV barrel distortion. This is expected for a 154° wide-angle lens and can be corrected in software using standard lens distortion models.

Is the CIL391 compatible with the Raspberry Pi HQ Camera?

Yes. The CIL391 is mechanically compatible with the Raspberry Pi HQ Camera M12 mount. The Commonlands CLA024 holder is also an option for custom integration.

Does the CIL391 wide-angle M12 lens ship same day?

Yes. Commonlands ships all in-stock M12 lenses same day from San Diego, California for orders placed before 12 PM PST.

What filter options are available for the CIL391?

Three variants are available: CIL391-F2.2-M12ABR650 (blue-glass reflective 650nm IRC), CIL391-F2.8-M12A660 (standard 660nm IRC), and CIL391-F2.8-M12ANIR (no filter for NIR applications).

The CIL391 is a 3.25mm wide-angle M12 lens that delivers 154° field of view on 1/2.3" sensors like the IMX477 and IMX577. At F/2.8, 12MP resolution, and 5g total weight, this is the lens you want when replacing a GoPro-style camera module or building a compact wide-angle system from scratch.

The -16% TV barrel distortion is typical for a lens this wide — it is noticeable but correctable in software. The 7.9mm image circle covers 1/2.3" sensors fully, and the 13.9° chief ray angle is well-matched to modern BSI CMOS sensors. If you need sub-1% distortion, look at our rectilinear M12 lenses instead. The CIL391 trades geometric perfection for maximum angular coverage.

All-glass construction with an IP67-sealed M12A barrel and BBAR coating on the first surface. Three variants: CIL391-F2.2-M12ABR650 with blue-glass reflective 650nm IRC, CIL391-F2.8-M12A660 with standard 660nm IRC, and CIL391-F2.8-M12ANIR without a filter for NIR work. The 1.55μm pixel pitch rating means this lens resolves well on demanding small-pixel sensors.

Compatible with the Commonlands CLA024 lens holder. Also works with e-con Systems (12–15mm mount), D3 Engineering, iDS XLS, Allied Vision, Basler Dart, The Imaging Source M12, and Raspberry Pi HQ Camera boards. Check https://commonlands.com/pages/camera-field-of-view-calculator for exact angular coverage on your sensor.

Ships same day from San Diego for orders before 12 PM PST. At $39, this is one of the most cost-effective wide-angle M12 lenses in our catalog. For depth of field planning, use https://commonlands.com/pages/camera-depth-of-field-calculator.

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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.