The EF 75-300mm lens with USM delivers exceptional telephoto ability, for capture of far-off subjects, or for detailed close-ups of nearby objects. And the built-in Micro USM gives you rapid and quiet autofocus. Picture a frame-filling photograph of a distant hot-air balloon, followed by a sparkling shot of your daughter's face as she watches it — all taken in a matter of seconds. With that kind of potential, this measures up as an unusually capable lens for the price.
Details:
f/4-5.6 III EF telephoto lens with 35mm equivalent of 75-300mm
Micro USM (Ultrasonic Motor)
compatible with all Canon EOS SLR cameras
minimum focus distance: 4.9 ft.
constructed of 13 elements in 9 groups
filter size: 58mm
lens is 5-3/8" long, 2-13/16" in diameter
weight: 1.1 lbs.