Leica DG Vario-Elmarit 50-200mm f/2.8-4 ASPH Power OIS - Review / Test Report
CP+ 2018: Hands-on with the Panasonic Leica 50-200mm F2.8-4 ASPH: Digital Photography Review
Amazon.com : Panasonic LUMIX Professional 50-200mm Camera Lens, G Leica DG Vario-ELMARIT, F2.8-4.0 ASPH, Dual I.S. 2.0 with Power O.I.S, Mirrorless Micro Four Thirds, H-ES50200 (Black) : Electronics