With its effective focal length range of Approx. 16-35mm in 35mm format, the EF-S 10-22mm f/3.5-4.5 USM is a remarkable lens with outstanding image quality that will take your photography into new
Dimensions & areas of dramatic expression. The super-wide zoom not only gives you the freedom to get exactly what you want in the shot, it dramatically alters perspective to allow for dynamic expression. The lens means that you can get extremely close to subjects, exaggerating the difference in size between a near object & its background. Creative photographers can use this phenomenon to create excellent separation between subject & background for a strong sense of presence, or for a pan-focus effect with everything from foreground to background sharply in focus.