L049-50-M12 Description 50mm M12 low distortion lens Specifications Focal Length 50mm Aperture f/2.5 Image Size 1/2" Angle of View H: 7.3° Mount Type M12 x 0.5-6g Minimum Object Distance 0.1m Back focal length 17.18mm External Dimensions D=25mm L=48.8mm Net Weight 37g Dimensions