Another lens test with the GH4. This footage was all filmed with a Sigma 50-150mm f2.8 lens (previous generation) and a Metabones Nikon to m4/3 Speedbooster. All footage was filmed using the "Natural" settings and is straight from the camera with no grading or editing. As I learn more about the GH4 I don't hear mention of this lens. I think with the speedbooster its focal range will complement the 12-35 nicely.