This M12 lens is a great alternative lens option for Raspberry Pi cameras which use an M12 lens and holder - such as the M12 Mount Raspberry Pi High-Quality Camera, Arducam 8MP Sony IMX219 Camera Module or Arducam 12MP IMX477 Mini HQ Camera! This M12 mount lens has a 1/2.5" optical format and an effective focal length of 1.56mm. The FOV depends on the camera/mount being used but is typically between 140° and 185°. Note: This listing is for the lens only - no HQ mount adapter included. Features * Optical Format: 1/2.5” * Effective Focal Length: 1.56mm * 35mm equivalent focal length: 16.9mm * FOV on 1/2" sensor(D/H/V): 185°/185°/140° * FOV on 1/4" Pi Camera: 141° * F/NO: 2.0 * Mount: M12 * Size: 20mm x 17.33mm * Weight:7g * IR Sensitivity: sensitive to visible light, with 650nm IR filter https://elecena.pl/product/22721317/m12-lens-185-degree-fisheye-1-2-5-optical-format-1-56mm-focal-length 2023-03-07 https://elecena.pl/product/22721317/m12-lens-185-degree-fisheye-1-2-5-optical-format-1-56mm-focal-length 2023-12-27 https://elecena.pl/product/22721317/m12-lens-185-degree-fisheye-1-2-5-optical-format-1-56mm-focal-length 2024-09-19 https://elecena.pl/product/22721317/m12-lens-185-degree-fisheye-1-2-5-optical-format-1-56mm-focal-length 2024-11-29 https://elecena.pl/product/22721317/m12-lens-185-degree-fisheye-1-2-5-optical-format-1-56mm-focal-length 2024-11-30 https://elecena.pl/product/22721317/m12-lens-185-degree-fisheye-1-2-5-optical-format-1-56mm-focal-length 2025-08-05 https://elecena.pl/product/22721317/m12-lens-185-degree-fisheye-1-2-5-optical-format-1-56mm-focal-length 2025-11-28 https://elecena.pl/product/22721317/m12-lens-185-degree-fisheye-1-2-5-optical-format-1-56mm-focal-length 2025-11-29 https://elecena.pl/product/22721317/m12-lens-185-degree-fisheye-1-2-5-optical-format-1-56mm-focal-length 2026-03-30