Art Wolfe's 70-200

Art Wolfe is an American professional wildlife and nature photographer. He's one of the photographers featured in Canon's Explorer of Light. Canon USA has a dedicated website to feature Art Wolfe's work - Art Wolfe's Travels to the Edge. Recently he had replaced his EF70-200mm F/2.8L IS USM with EF70-200mm F/4L IS USM due to the F4 version offering huge advantage in weight saving for traveling shooter who work on location. Also for the same reason he preferred the EF400mm F/4 DO IS USM (1940g) over the EF400mm F/2.8L IS USM (5370g).