Metabones Focal Length Test - Panasonic GH4, Sigma 18-35mm f/1.8 Speedbooster vs Adapter

A quick test to show the focal length difference between the Metabones MFT adapter and the Metabones MFT Speedbooster Camera: Panasonic GH4 Lens: Sigma 18-35 F/1.8 (Nikon Fit) Adapters: Metabones Adapter Nikon to MFT & Metabones Speedbooster Nikon to MFT Resolution: C4K, 4096x2160 Frame Rate:24fps, Shutter: 180deg Picture Style: CineV, -4,0,-5,-2,0 Grading: None