Tamron 28-75mm, ideal for Nature, Street and Portrait photography. Specialized in wide-angle closeup shots. And designed specially for Mirrorless cameras. Specialized glass elements control aberrations and produce stable resolution across entire zoom. BBAR(Broad-band Anti Reflection) coating reduces ghosting and flaring. Further, High-speed precision AF drive system with RXD(Rapid Extrasilent Reflection) coating motor unit. Also, this lens delivers a stunning bokeh. Likewise vibrant soft images and defocused blur qualities. A combination of light weight, compact design and stunning image quality. The moisture-resistant construction and Fluorine coating gives exceptional mobility and outdoor functionality.