Sigma 70-300mm F/4-5.6 DG Macro Telephoto Zoom Lens for Nikon DSLR Camera Telephoto zoom lenses with excellent cost performance and optimized for use with digital SLR cameras. Capable of macro photography, this lens has a 1:2 maximum close-up magnification at the 300mm focal length. It's the ideal high performance lens for portraits, sports photography, nature photography, and other types of photography that frequently use the telephoto range. It also has a switch for changeover to macro photography at focal lengths between 200mm and 300mm with a maximum close-up magnification from 1:2.9 to 1:2. SLD (Special Low Dispersion) glass in this lens provides excellent correction of chromatic aberration.