Item Type: Camera Lens Material: Metal, Glass Focal Length: Approx. 35mm/1.4in Maximum Aperture: F1.6 Minimum Aperture: F16 Mount: C-Port Lens Type: Fully Manual Lens Closest Focusing Distance: Approx. 0.3m/0.98ft Maximum Focusing Distance: Infinity Viewing Angle: 18° Structure: 4 Groups with 4 Parts Coating: MC Multi Layer Aperture: 12 Parts Filter: Diameter Approx. 37mm/1.5in 1、LARGE APERTURE: The lens is equipped with a large aperture of F1.6, which can effectively improve the shutter speed in darker environments, and the picture is still bright. 2、12 APERTURE BLADES: The camera lens has up to 12 aperture blades to produce nearly round diffuse spots. Correct reduction of the aperture can produce a 14-star light effect. 3、C-MOUNT: The standard C-mount lens flange distance is short and can be used with a variety of mount camera body adapter rings (adapter ring not included). 4、MC MULTI LAYER COATING: MC multi-layer coating is used in backlight environments to reduce glare and purple fringing, improve lens finish and light transmission, and improve image quality. 5、DURABLE AND PORTABLE: The 35mm F1.6 lens is made of alloy and premium optical glass to improve reliability and durability. Small size, does not take up space, and is easier to carry. 1 x Camera Lens