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 1/4" optical format and an effective focal length of 1.05mm. The FOV depends on the camera/mount being used but is typically between 142° and 206°. The thread on this lens is 4mm - please check the mount/camera you're planning to use this with before purchasing. Note: This listing is for the lens only - no HQ mount adapter included. Features * Optical Format: 14” * Effective Focal Length: 1.05mm * 35mm equivalent focal length: 4mm * FOV on 1/2" sensor(D/H/V): 206°/194°/142° * FOV on 1/4" Pi Camera: 194° * F/NO: 2.0 * Mount: M12 * Length Holder Height: 4mm * Size: 16mm x 8.6mm * Weight:2g * IR Sensitivity: sensitive to visible light, with 650nm IR filter https://elecena.pl/product/22721318/m12-lens-206-degree-1-4-optical-format-1-05mm-focal-length-discontinued 2023-03-07 https://elecena.pl/product/22721318/m12-lens-206-degree-1-4-optical-format-1-05mm-focal-length-discontinued 2024-09-19