A compact macro-focus lens that covers the full range from life-size to infinity. "Life size" macro imaging means that the image you capture is the same size as the subject in reality - giving you spectacularly sharp photos of insects, flowers, gemstones, postage stamps and other small nature subjects and collectibles. Mounted on the Sony alpha DSLR-A100 camera, this lens provides a 75mm focal length (35mm equivalent) - which means it can also be used as a standard and midrange telephoto lens.