Arducam LN013 M12 Mount 2.8mm Low Distortion Camera Lens

No, it is not directly compatible. The official Raspberry Pi Camera Module V2 has a fixed, non-removable lens. To use the LN013, you need a camera board that supports M12 lens holders, such as an Arducam B0031 or B0103 sensor board. These boards replace the standard camera module and provide the necessary M12 threaded mount for attaching and focusing this interchangeable lens.

A low distortion lens, with only 1.5% geometric distortion, ensures straight lines in a scene appear straight in the captured image. This is critical for applications like optical measurement, augmented reality, mapping, and any computer vision task where accurate spatial relationships are needed. It provides more reliable data than standard lenses with higher barrel or pincushion distortion, leading to better algorithm performance without software correction.

Yes, the integrated 650nm IR-cut filter blocks infrared light to preserve natural color accuracy under visible light sources like daylight or indoor lighting. This improves daytime color rendition but reduces sensitivity in very low-light or pure infrared (IR) illumination scenarios. For night vision using IR LEDs, you would need a lens without an IR-cut filter or one with a removable filter to allow IR light to reach the sensor.

First, ensure your camera board (e.g., Arducam B0031) has an M12 lens holder installed. Screw the LN013 lens into the holder's threads by hand. To focus, point the camera at a detailed subject roughly at your desired working distance. While viewing a live preview, gently rotate the lens within the holder until the image appears sharpest. Once focused, you may secure the lens in place using the locking mechanism on the holder, if available, to prevent it from loosening.