Tamron SP 90mm f/2.8 DI Macro is a compact, lightweight lens with optimized optical design ideal for film and digital photography. The SP 90mm f/2.8 Macro lens feature ten elements in nine groups, 0.29 meters close focusing distance, 27° viewing angle, nine bladed diaphragm, 55mm filter thread and built-in autofocus system. The DI lens provides anti-reflection and coating technology to reduce flare to lowest degree. The lens deliver life-size 1:1 macro reproduction. Combining Tamron's optical and digital integration technology, the Tamron SP 90mm f/2.8 DI Macro delivers stunning results.