The 200-500mm Super Telephoto lens features a detachable filter effect controller (FEC) which enables easy control of the PL filter even when the hood is attached, and a removable tripod mount. To meet the needs of both silver-halide and digital photography, the lens features Di (Digitally Integrated Design), the designation Tamron puts on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras as well as film cameras.