Panasonic Leica DG Vario-Elmarit 50-200mm f/2.8-4.0 ASPH lens Review – Review By Richard
Panasonic Leica DG Vario-Elmarit 50-200 mm f/2.8-4 ASPH. review - Build quality and image stabilization - LensTip.com
Leica Magic With A Lumix Mount: The 200mm and 50-200mm Lenses | Natural Exposures, Inc.
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