The lens construction consists of 12 elements in 9 groups, including 1    AA (advanced aspheric ) lens and 4 ED (extra-low dispersion) lenses which can effectively suppress chromatic aberration. T2.0 light  transmission can achieve excellent resolution from the center to the edge.

It is a large diameter lens and features high transparency typical of prime lens. To create a background with a blur effect like cream has extremely strict requirements on the distortion and vignetting. The lens also produce rich and delicate color of the photo, making it more cinematic.