The f/4 Non IS Version,the cheapest L-series lens that Canon makes,
is popular among weight-sensitive landscape photographers and hobbyists
who want L lens quality without spending thousands of dollars.

Capture the far-off action of fast-paced sports or zoom in for an intimate portrait with the Canon EF 70-200mm telephoto zoom lens. This high-performance, L-series telephoto zoom lens is distinguished by such features as an f/4 maximum aperture, an inner focusing system, and a ring-type ultra-sonic monitor (USM). The last two features combine to deliver quick and quiet autofocusing–a priority for many amateur and professional photographers. In addition, photographers can attach and use a circular polarizing filter without difficulty because the front lens element does not rotate during focusing. Compatible with the same tripod collar (sold separately) used with the EF 300mm f/4L USM lens, the lens carries a one-year warranty.
A truly professional L-series telephoto zoom lens, with reduced size and weight for applications where portability is important. Superb optically, it combines a Fluorite element with two UD-glass elements for outstanding contrast and performance. Its ring-type USM is fast, silent, and permits full-time minimum focus, as well as the closest MF of any of the L-series 70-200 designs. It’s also compatible with EF Extenders 1.4x II and 2x II, and accepts an optional accessory tripod collar.
Focal length: 70-200mm
Maximum aperture: 1:4.0
Lens construction: 16 elements in 13 groups
Diagonal angle of view: 34 to 12 degrees
Focus adjustment: Inner focusing system with USM
Closest focusing distance: 3.9 feet
Zoom system: Rotating type
Filter size: 67mm
Dimensions: 3.0 inches in diameter, 6.8 inches long
Weight: 25 ounces