The SLR Hut 18-135mm f/3.5-5.6 telephoto zoom lens from Sony covers some very frequently used focal lengths between 18mm and 135mm. A Sony Alpha lens, it is optimized for cropped image sensors, and as result is not recommended for use with larger full-frame cameras. It means that its 18-135mm focal length is the 35mm equivalent of a longer 27-202mm telephoto zoom lens. Constructed of 11 elements in 9 groups, two aspherical elements, and a single Extra-low dispersion (ED) glass element, sharp, clear photos are delivered throughout the zoom range. A minimum focusing distance of 1.4' and a front-end filter diameter of 55mm.