The Leica L-mount 135mm T2.9 1.8x Full-Frame Anamorphic Lens from Sirui creates a shallower depth of field, smoother blurred backgrounds, and excellent foreground separation. Its anamorphic design produces elongated oval bokeh and horizontal blue streaks, giving your footage a pronounced anamorphic aesthetic. An image captured in 16:9 is de-squeezed to an anamorphic 3.2:1 aspect ratio.