note: This lens is a fixed aperture and no blades

1.Product structure：Composed of 6 optical structures in 4 groups, the closest focusing distance is 0.35m, the weight is about 49g, the focal length is 18mm, and the equivalent focal length is 27mm 2.Aperture: APS-C lens with a fixed aperture value of F6.3，It is a cookie head shape. 3.Applicable scenarios: widely used in humanities, landscapes, food, street photography and other scenes 4.Features: biscuit head design, small and portable; slim and light；Fixed perspective