Exquisite performance. Meticulous detail. New generation "G2" lens boasts faster AF speed and enhanced VC. Introducing the new large-aperture standard zoom with advanced functionality and usability. This versatile new lens delivers ultra-high image quality, image stabilization of 5 stops and superb performance even in backlit scenes. Your world never looked this beautiful. Sophisticated design delivers superb performance and ultra-high image quality eBAND Coating provides superior anti-reflection properties, and reduces flare and ghosting High performance MPU for AF dramatically improves autofocusing accuracy and speed Dedicated MPU delivers the highest image stabilization in class at 5 CIPA-rated stops New VC Auto Detect mode 2 for panning MOD reduced to 37.4" (1:6.1 max. mag. Ratio) Tamron's sophisticated eBAND Coating eliminates ghosting and flare Fluorine Coating and Moisture-Resistant Construction New Built-in Lens Hood Lock to avoid accidental misalignment of hood Compatible with TAMRON TAP-in Console, an optional accessory product Sophisticated design delivers superb performance and ultra-high image quality The use of specialized, high quality glass materials assures accurate color reproduction and superior sharpness, perfect for today's high-pixel-density cameras. The optical construction (17 elements in 12 groups) uses 2 XR (Extra Refractive Index) elements, 3 LD (Low Dispersion) elements, 3 GM (Glass-Molded aspherical) and one hybrid aspherical lens element.