EF 300mm f/4L IS USM
The EF 300mm f/4L IS USM comes with a max aperture of f/4 and a prime focal length of 300mm making it ideal for wildlife and sports photography. The built-in image stabilization offer up to two stops of image shake correction when hand holding the lens, while the IS 2 mode assists in panning both horizontally and vertically. The lens has a rear focusing mechanism and USM (Ultra-sonic Motor) for faster and quieter auto-focusing.
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).
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Focal Length & Maximum Aperture
15 elements in 11 groups
Diagonal Angle of View
Rear focusing system with USM
Closest Focusing Distance
1.5m / 4.9 ft.
Max. Diameter x Length, Weight
3.5" x 8.7", 2.6 lbs. / 90.0 x 221.0mm, 1190g