This lens has Canon's ultrasonic motor (USM), which is silent and fast. I cannot hear the lens auto-focus. It supports full-time manual focus, which means you ...
The Great Canon EF 24-70mm f/2.8 L USM Lens. The Canon EF 24-70mm f/2.8 L USM Lens is one of the most amazing zoom lens I have ever used.
Mar 9, 2010 · Canon EF 35mm f/1.4L USM -- A Powerful Lens for Awesome Photography ... The Canon EF 35mm f/1.4 L USM Lens ... mm and it weighs around 582 grams.