This Tamron SP 70-200mm f/2.8 Di VC USD G2 Lens is characterized by its bright f/2.8 constant maximum aperture as well as sophisticated optical and physical designs. It’s a popular telephoto zoom for a variety of shooting applications. In regard to optics an improved layout contains one XLD element and five LD elements to suppress color fringing and chromatic aberrations for notable clarity and color accuracy and both BBAR and eBAND coatings have been applied to reduce flare and ghosting. Complementing the optical assets this 70-200mm f/2.8 also features an advanced Vibration Compensation (VC) system that compensates for up to five stops of camera shake for sharper handheld shooting. A ring-type Ultrasonic Silent Drive autofocus motor is also featured for responsive and accurate performance and also affords full-time manual focus override for fine-tuned control. The sealed, dust- and moisture-resistant construction greatly benefits this lens.