Features:With Sony E-Mount, support full-frame camera body, suitable for most of Sony E-Mount cameras.85mm focal length, can be easily switched between half-body portrait photography and full-body portrait photography; F1.8 large aperture, in low-light condition or indoor, can shoot better works for you.10 elements in 7 groups, including 1 ED lens and 4 short wave length and high transparent lens, can effectively solve the dispersion and chromatic aberration of optical lens; Adopt glass optical lens and multi-layer coating technology to effectively increase light transmittance and control backlight ghost image and glare.Electronic aperture, internal auto focus, constant lens length, support Sony eye focus function and EXIF imformation transmission; With noiseless STM focus motor system, fast and accurate automatic focusing can be realized.Precision metal structure, net weight is about 665g, portable and durable; Comes with a round lens hood, used to reduce flare or scattering light of ghost and avoid rain, snow and dust sticking to the front of the lens.