 Introduced on 15 September 2016, Canon EF 70-300mm f/4-5.6 IS II USM lens is the second Canon lens equipped with Nano USM technology, a focusing motor that combines the benefits of a ring USM (ultrasonic motor) for high-speed AF during still photo shooting and lead-screw type STM (stepping motor) for smooth and quiet video autofocusing (AF).The lens also features a new LCD information display and four-stop image stabilization.It was available in November 2016, for an estimated retail price of $549.99.