The smc PENTAX-D FA 100mm f/2.8 WR macro is designed for digital and film SLR cameras. The aluminium construction with weather resistant seals means you can get the picture whatever the weather. It utilizes curvature and positioning of optical elements to virtually eliminate flare and ghosting for clear, high-quality images particularly important to digital photography. This versatile lens can also be used a telephoto lens and is excellent for portraits. Achieving life-size (1:1) magnification it features our acclaimed multi-layer coating to lower surface reflection, reduce ultraviolet rays, and deliver clear, high-contrast images.