This successor to Canon’s 75–300mm, the industry’s first stabilized lens, has better coatings to suppress ghosting and flare, and a panning mode for the IS system. Zoom lock button at 70mm.
Standout Spec: Stabilization improved to slightly more than 3 stops, according to our tests.
Lens Test: Canon EF 70-300mm f/4-5.6 IS USM AF
Pentax 17–70mm f/4 DA AL SDM
Pentax 70mm f/2.4 DA Limited
Sigma 70–300mm f/4–5.6 DG OS
Sony 70-400mm f/4-5.6G SSM