April 2012, Tamron, Wide Angle, Canon EF, f/2.8, Zoom, Autofocus, Image Stabilising, Ultrasonic Motor, Aspherical, - Photographic artists have been waiting for a full-featured, constant-aperture zoom lens. The wait is over. The A007 is a high-quality, highly functional, high-speed standard zoom lens covering the 24-70 mm focal range.