EF 28-70mm f2.8L USM

introduced 1993

Focal length and maximum aperture: 28-70mm f/2.8
Lens construction: 16 elements in 11 groups
Diagonal angle-of-view: 75° - 34°
Focus adjustment: front group rotating extension sydtem with USM
Closest focusing distance: 0.5 m/ 1.6 ft
Zoom system: rotating type
Filter size:77mm
Length x max. diameter, weight: 117.6 x 83.2mm, 880g