The Canon EF 300mm f/4L IS USM is a 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. (The sample photos are copyrighted by the owner. You may click at the thumbnails and see the original pictures.)

Focal Length 300mm
Maximum Aperture f/4
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 3.5" x 8.7" / 90.0 x 221.0mm
Weight 2.6 lbs. / 1190g
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Sample Videos

Canon EF 300mm f4L IS USM lens review
Canon EF 300mm f4L IS USM video