EDATEC 2MP 4.2mm M12 Lens for Raspberry Pi Camera

This EDATEC 2MP M12 lens is designed for Raspberry Pi camera modules that feature a standard M12 (S-mount) threaded lens holder. It is broadly compatible with official Raspberry Pi Camera Module versions 1 and 2, as well as many third-party M12-mount camera boards. Always verify your specific camera module has a removable M12 lens holder before purchase. For cameras with fixed lenses or different mounts (like CS-mount), an adapter may be required.

To install, carefully unscrew the existing lens (if present) from your camera module's M12 thread in a counter-clockwise direction. Screw the EDATEC lens onto the threads clockwise, but do not overtighten. To focus, point the camera at a detailed subject roughly 1-2 meters away. While viewing a live feed on your Raspberry Pi, gently rotate the lens barrel until the image is sharp. You may need to slightly loosen a locking screw on some lens barrels before adjusting. Secure the focus by tightening the locking screw or the lens itself.

A 4.2mm focal length on a Raspberry Pi camera sensor (typically 1/4-inch) provides a moderately wide field of view, making it suitable for general-purpose applications. It is ideal for indoor surveillance, robotics where a broader scene context is needed, object recognition on a workbench, or video conferencing. For applications requiring extreme close-ups (macro) or very distant subjects (telephoto), lenses with shorter or longer focal lengths respectively would be more appropriate. This 4.2mm lens offers a versatile balance for most projects.