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).


Specifications:

Focal Length & Maximum Aperture: 300mm 1:4.0

Lens Construction: 15 elements in 11 groups

Diagonal Angle of View: 8¦ 15'

Focus Adjustment: Rear focusing system with USM

Closest Focusing Distance: 1.5m / 4.9 ft.

Filter Size: 77mm

Max. Diameter x Length, Weight: 3.5" x 8.7", 2.6 lbs. / 90.0 x 221.0mm, 1190g


Mfr.# 2530A004