You're Never Too Far From a Great Close-Up.Discover the next generation ultra-telephoto zoom lens from Tamron. World acclaimed ultra-telephoto zoom reborn; meet the all-new next generationThe SP 150-600mm G2 (Generation 2) ultra-telephoto lens with upgraded optical performance enables handheld shooting with remarkable definition. This new lens builds upon the success of the current SP 150-600mm (Model A011) which Tamron first introduced in December, 2013, including better overall optical performance and faster AF speed, VC enhancements, plus Fluorine Coating, FLEX ZOOM LOCK and tele converter. Rebuilt from the ground up to meet Tamron's strict quality standards and design specifications, this new zoom combines smart engineering and high performance with quality craftsmanship, durability and user friendliness. Enhance optics meet greater versatilityThe SP 150-600mm G2 includes three LD (Low Dispersion) lens elements which completely eliminate axial and transverse chromatic aberrations. It also features upgraded optical construction (21 elements in 13 groups). Anti-reflection technologies, eBAND (Extended Bandwidth and Angular-Dependency) Coating and BBAR (Borad-Band Anti-Reflection) Coating improve light transmission and suppress internal reflections, including light reflected off the camera's image sensors. So even when taking a backlist or semi-backlit photograph, ghosting and flare caused by reflected light are full eliminated. Additional enhancements expand the len's versa...