Arducam LN055 1.95mm F2.0 M12 Lens for 1/1.7" USB Cameras

The Arducam LN055 1.95mm lens is optically optimized for a 1/1.7-inch image sensor format. It provides a stated 155-degree horizontal field of view when paired with a camera module using this specific sensor size. Using it with a significantly different sensor size will alter the effective field of view and may cause vignetting or reduced image quality at the edges.

This lens features a standard M12 (also known as S-Mount) thread. To attach it, simply screw the lens clockwise into the matching M12 threaded mount on your compatible camera board. Ensure the camera sensor is clean and avoid overtightening. The lens is fixed-focus, so no focus adjustment is required after installation, making integration straightforward for embedded vision projects.

The LN055 lens offers an ultra-wide 155-degree horizontal field of view on a 1/1.7-inch sensor. Wide-angle lenses of this focal length typically exhibit noticeable barrel distortion, meaning straight lines near the edges of the frame will appear curved. This characteristic is common for fisheye-style lenses and should be considered for applications requiring precise geometric measurements, though it can be corrected in software during image processing.

This lens is primarily designed for USB camera modules with an M12 mount and a 1/1.7-inch sensor. For Raspberry Pi cameras (which typically use M12 mounts but smaller sensors like 1/4-inch) or Arducam's SPI interfaces, you must verify the specific camera board's sensor size and mechanical compatibility. The field of view will differ, and the lens may not focus correctly if the sensor's back focal distance is not matched.