Panasonic AG-LA7200 16:9 Anamorphic Lens Adapter 16x9 1.33x 

Great for 16:9 sensors. Works also on fullframe cameras - tested on FX6 with 24, 35 and 85mm lens

Looks amazing on lenses like the popular Sigma 18-35 and many others to give you instant Anamorphic look and beautiful flares.