There's a Kickstarter for cinema lenses built specifically for the micro 4/3 mount. Some very respectable names on the video talking about the lenses, too! Veydra - M4/3 Cinema Lenses for GH4 and BMPCC What is Veydra? Veydra is a premium cinema lens made specifically for filmmakers using Micro 4/3 cameras. Veydra Mini Prime lenses all feature + Resolution that exceeds 4K + Cinema 0.8 module focus and iris gears + Consistent front 80mm outside diameter & 77mm filter threading + Similar length for quick lens changes + Constant T2.2 aperture for easy lighting set ups + Brass plated mounts for durability.