Sigma 70-300mm f/4-5.6 DG APO Macro Telephoto Zoom Lens for Canon SLR Cameras Optimized for use with digital SLR cameras Multi-layer lens coating and lens design reduces flare and ghosting Minimum focusing distance is 37.4 inches at all zoom settings Features 14 lens elements in 10 Groups. SIGMA DC lenses cannot be used with digital cameras with an image sensor larger than APS-C size* or 35mm SLR, and APS Film SLR cameras. High-performance lens ideal for portraits, sports photography, nature photography