The Camera Company, Boston, Massachusetts

The Canon EF 70-200mm f4.0L USM is a high-performance, L-series telephoto zoom lens combining light weight and compactness with an f/4 maximum aperture. Inner focusing and the ring USM enable quick and quiet autofocusing. Also, a circular polarizing filter can be attached and used without difficulty because the front lens element does not rotate during focusing. The tripod collar (sold separately) is the same one used with the EF 300mm f/4L USM.

Specifications

Lens
Focal Length & Maximum Aperture	70-200mm 1:4.0
Lens Construction	16 elements in 13 groups
Diagonal Angle of View	34° - 12°
Focus Adjustment	Inner focusing system with USM
Closest Focusing Distance	1.2m / 3.9 ft.
Zoom System	Rotating Type
Filter Size	67mm
Max. Diameter x Length, Weight	3.0" x 6.8", 25 oz. / 76mm x 172mm, 705g