Camemake CM_LENS_11639 is a 3mm F/2.4 fixed-focus M12 board lens for 1/3" sensors, with a 6.23mm image circle. With a 24.16° maximum CRA and -3.5% TV distortion; TTL 16.37mm, IR-cut filter. Identify and order this Camemake lens as CM_LENS_11639.