As a leading camera lens manufacturer Tamron USA is proud to introduce the world's only ultra-telephoto all-in-one zoom lens for the APS-C format. With a focal length range of 18-400mm and 22.2x zoom it has an ultra-telephoto range equivalent to 620mm in the 35mm format. This brings distant subjects closer while providing perspective-flattening effects that are only possible with an extreme telephoto lens. Plus it offers exceptional optical performance across the entire zoom range-from wide angle to ultra-telephoto. With this lens-and its Moisture-Resistant Construction-Tamron brings the art of photography to the joy of travel. Now you can use the same lens to shoot everything from stunning landscapes and neon-lit cities to detailed portraits delicate flora and local culinary specialties. The ultra-telephoto range makes it just as easy to photograph animals and sports. And with a maximum magnification ratio of 1:2.9 you can even enjoy tele-macro photography.