4k resolution lens 3.4mm camera flat lens 1/2.3" 16mp m12 85degree better than 5.4mm for xiaomi yi 4k and gopro hero modified Specification: Name: lyx3.4-2 Image size: 1/2.3inch ï?8mm Focal length: 3.4mm, ±5% Aperture: 2.8mm, ±5% Field of view: d: 99, h: 85, v:69, Distortion: 1% Total optical length: 24mm, ±0.2 Back focal length: 3.22mm Flange black length: 1.72mm Thread size: m12*p0.5 Optical structure: 5g2mg+ir Ir cut coating: tave.
