Covering trade exhibitions with this zoom lens is easy. With its 28mm wide-angle and up to 70mm of short telephoto focal lengths available at your disposal, almost anything in a trade exhibit, ranging from the products, display booths or the atmosphere can be captured using available light. Close-ups capability is another feature of this lens. Bear in mind that the close-up is to enable users to shoot close-ups of certain things and this feature is not designed for true macro photography. Subjects that can be shot using its close-up feature are toys, books, CD-ROMs, glassware, portraits (at 70mm), plants, paintings or photographs larger than 5x7 inches. AF speed is fast and almost silent on the EF 28-70mm f/2.8L USM zoom lens. When used with EOS cameras in the AI Servo AF mode, focus tracking with moving subjects is easy as long as the subjects are within the camera's AF points. Since this a wide-angle to short telephoto zoom lens, most of the moving subjects encountered are usually people or sports where the action is close, like the starting grid of a marathon or charity walk. << Back to Main . 1 . 2 . 3 . 4 . 5 . 6 .