Canon EF 100-400mm f/4.5-5.6L IS II USM Lens Review
This eagerly awaited telephoto zoom lens replaces the old 100-400mm lens in Canon's lineup of professional lenses. Its predecessor was popular due to its relative compact size, light weight and good value for money.
Good sharpness; Excellent build quality; Novel zoom ring resistance adjustment; Relatively lightweight; Reasonably low distortion; Weather and dust resistant; Low CA; Image stabilisation; Fast autofocus
More expensive than the old 100-400mm ever was; but differences may be worth it to some