Laowa 100mm f/2.8 2X Ultra Macro APO LensThis new 100mm lens has a full frame sensor size coverage and a focus range of 2: 1 magnification to infinity. The lens is physically similar to other 100mm Macro lenses on the market, but its wider magnification range allows macro photographers to capture subjects of any size. This 100mm f 2. 8 lens can also focus to infinity and be used as a portrait lens due to its superior optics. Only the Canon EF version has a CPU chip and motor for aperture