The world's smallest and lightest F2.8 tele-zoom lens fits comfortably in your handThe 70-180mm F/2.8 Di Iii Vc Vxd G2 (Model A065) is the ""G2"" 2nd-generation successor to the 70-180mm F/2.8 Di Iii Vxd (Model A056), a lens that won astounding acclaim from the marketplace and has been enjoyed by users around the world. The new model keeps its fast F2.8 aperture, while being newly equipped with Tamron's proprietary Vc (Vibration Compensation) and offering greatly improved close-up capability.Even with these new features, the lens is the world's smallest size and lightest weight for its class (156.5mm / 6.2in long at wide 70mm end) and weighs just 855g / 30.2oz as a result of its size-minimizing 180mm focal length at the tele end versus bulkier 70-200mm lenses. In addition to offering the highest level of mobility, the optical design has been completely revamped from the 1st-generation model to further refine its exceptional optical performance. With the 70-180mm F2.8 G2, Tamron has pushed both rendering capabilities and miniaturization to the limits. These advancements amplify the joy of capturing the world around you.The amazing performance of the fast F2.8 aperture captures the world in vivid detailThe design of the 70-180mm F2.8 G2 has been completely reworked from the ground up to attain uncompromising optical performance throughout the entire zoom range. This new model has an optical construction of 20 elements in 15 groups. The precision combination of multiple special lens elements including an Xld (eXtra Low Dispersion), three Ld (Low Dispersion), two Gm (Glass Molded Aspherical) and one hybrid aspherical lens element further enhances the ability to correct for chromatic and various other aberrations.Additionally, the Bbar-G2 (Broad-Band Anti-Reflection Generation 2) Coating, Tamron's next-generation technology, suppresses ghosting and flare to enable the crisp and clear rendition of images, and assures high resolving power that captures subjects in minute detail. Another feature is the beautiful, soft bokeh that the large F2.8 aperture provides, vastly expanding the breadth of expressive possibilities available to you. From snap photography to portraits and landscapes, enjoy a diverse range of shooting in any situation.Capture your vision with fast and precise Af and improved tracking performanceThe Af drive of the 70-180mm F2.8 G2 continues to employ the Vxd (Voice-coil extreme-torque Drive) linear motor focus mechanism that was used for the first time in the 1st-generation Model A056, inheriting the quality and performance it provides. With astoundingly agile performance representing a high mark in Tamron's history, this Af system faithfully fulfils the intentions of the photographer to a high degree of precision in steps of 0.005mm, less than one-tenth the width of a human hair.tamron's proprietary Vc mechanism empowers mobilityTo let you fully enjoy its excellent portability with ease, the 70-180mm F2.8 G2 is equipped with Tamron's proprietary Vc mechanism. This suppresses camera shake that tends to occur when shooting at the telephoto end or during close focusing, thereby enabling stable shooting results. It's also highly effective when shooting in low-light conditions that often lead to camera shake, like evening and night scenarios or dimly lit indoor scenes.