Canon's great white telephoto lenses are fab for fast sports and action

Canon
Shooting wide open with an EF 200mm f/2 lens makes it easy to focus attention on the leading Moto X rider of the group (Image credit: Brian Worley)

Canon EOS cameras feature sensors that offer amazing low-light image quality, yet still sports photographers require large, long, fast-aperture telephoto lenses. Factor in that the aperture value is a ratio of the effective diameter of the aperture divided into the focal length; so a 600mm f/4 lens needs a 150mm diameter aperture, making lenses big and requiring large optical elements. 

There are multiple factors that determine what kind of gear is needed to succeed: fast shutter speeds, a high ISO performance, fast, accurate and responsive AF, and high frame-rates. Capturing dynamic action invariably requires fast shutter speeds to avoid subject blur. 

PhotoPlus: The Canon Magazine

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Brian Worley

Brian is a freelance photographer and photo tutor, based in Oxfordshire. He has unrivaled EOS DSLR knowledge, after working for Canon for over 15 years, and is on hand to answer all the EOS and photographic queries in Canon-centric magazine PhotoPlus.