SUPPORT AUTO FOCUS & EYE FOCUSAdopts steady, quick and smooth AUTO FOCUS, Which can capture the high speed moving objects, widely compatible with Full Frame cameras, after installing Sony camera, support Sony body to view aperture, shutter, exposure compensation and others. 85mm F1.8 STM support Sony Eye Focus function, twice success rate increased for EF which is more efficient to recognize and catch shooting object. 85MM F1.8 STM AF LENSThe 85mm focal length can be easily switched between a half-length portrait and a full-length portrait. Whether it's a full-frame body or APS-C, you will find that you always have the right distance from the subject when using the 85mm lens. F1.8 Large Aperture offers beautiful defocusing effects and enables massive amount of light for low-light or dimly lit shooting scenarios. 10 ELEMENTS IN 7 GROUPSFeatures with 10 elements in 7 groups, ideal aperture with 9 blades. New optical technology for good image quality.85mm large aperture telephoto portrait fixed-focus lens, support EF mount. The lens has excellent close-up shooting ability, focusing distance is 80cm~and the image ratio of small object distance can reach 1: 8. PRECISE METAL ELECTRONIC CONTACTThe lens is equipped with built-in metal electronic contacts, supports EXIF information transmission, electronic automatic iris adjustment, can record digital photo attribute information and shooting data. The lens bottom has micro USB upgraded port, can download newest firmware from VILTROX website to make to make greater lens performance. DURABLE & LIGHTWEIGHT STRUCTURE WITH LOTUS HOOD PROTECTIONThe All-metal body structure ensures lens assembly accuracy and durability, which only weight 484g lighter than the original version ; Designed with LOTUS LENS HOOD which can be used to reduce flare or scattering light of ghosts and avoid rain, snow or sticking to the front of the lens. FEATURES: 85mm focal length,F1.8 large aperture 10 elements in 7 groups, including 1 LED lens and 4 Short wave length and high transparent lens HD Nano multilayer coating Adopts USB Upgrade port for firmware to reach a compatibility for the newest cameras model Electronic aperture, internal focus, constant lens length Noiseless STM focus motor Precision metal structure SPECIFICATION: Focal Length: 85mm Aperture:f1.8-f16 Aperture Blades No.: 9 Camera Mount: E-Mount Format Compatible Frames: Full Frame Shooting Distance: 0.8m(31.5 inch) Field Angle: (Diagonal/horizontal/vertical) Focus Mechannism: AF(Internal Focus) Image Field Diameter: 28.4mm(1.12 ") Close Range Coverage: 192 x 288mm (7.65 x 11.34") Image Ratio at Min.Distance: 1:8 Lens Structure: 10 elements in 7 groups Flange Distance: 18mm(0.71") Pupil Position:10mm(0.39") Auto Focus: Support (Focus Peaking + PDAF) Image Stabilization: Support in-camera stabilization Auto Iris: Electronic auto iris EXIF Information: Support Filter Specification: M72 x 0.75 Rotation Angle of the Focusing Ring: 360 Degree Max.Diameter:80mm(3.15") Diameter of the Focusing Ring: 80mm(3.15") Weight:626g(1.38lb) PACKAGE INCLUDES: 1 x 85mm F1.8 STM AF Lens 1 x Lens Hood 1 x Front Cap 1 x Back Cap 1 x Lens Bag 1 x User Manual