Compact L-series telephoto lens with an Image Stabilizer which compensates for camera shake with the equivalent effect of a shutter speed two stops faster. Two Image Stabilizer modes are provided: Stabilizer Mode 1 (the same mode featured on the EF 75-300mm f/4-5.6 IS USM) and the new Stabilizer Mode 2 which steadies the image during horizontal or vertical panning. Mode 2 detects the panning direction automatically. The closest focusing distance is 4.9 feet (1.5 m).

• Weight (g) : 1,190
• Filter Diameter (mm) : 77
• Maximum Magnification (x) : 0.24
• Magnification with Extension Tube : EF12 0.30-0.04
• Magnification with Extension Tube : EF25 0.37-0.09
• Diagonal Angle of View : 8?? 15'
• Horizontal angle of view : 6??50'
• Lens Construction (elements/groups) : 15/11
• Max. Diameter x Length (mm) : 90x221
• Minimum Aperture : 32
• No. of Diaphragm blades : 8
• Closest Focusing Distance (m) : 1.5
• AF Actuator : USM (Mechanical full-time manual focusing built-in.)