The Tamron SP 150-600mm G2 (Generation 2) ultra-telephoto lens is Tamron's latest addition to the SP line. With upgraded optical performance, thanks to flourine coating and improved VC (Vibration Compensation), the 150-600mm G2 lens builds upon the success of the first generation. Tamron rebuilt the 150-600mm G2 from the ground up to meet their strict quality standards and design specifications, and combined smart engineering and high performance to provide users with quality craftsmanship, durability, and user friendliness.
The 150-600mm G2 lens includes three LD (Low Dispersion) lens elements which completely eliminate axial and transverse chromatic aberrations. It also features upgraded optical construction with 21 elements in 13 groups. Two new anti-reflection technologies, eBAND and BBAR Coatings, improve light transmission and suppress internal reflections, including light reflected off the camera's image sensors so that even when taking a backlit or semi-backlit photo, ghosting and flare cause by reflected light are eliminated.
The 150-600mm G2 is also equipped with a USD (Ultrasonic Silent Drive) ring-type motor for accurate high speed focus and improved VC (Vibration Compensation) for effective handholding up to 4.5 stops. It is also equipped with a new Flex Zoom Lock for locking or unlocking the zoom at any focal length.
*** NOTE: Sony Mount lenses do not have Vibration Compensation built-in to the lens, as it is built into the bodies of the cameras.