I have a good range of :43: lenses but lack something in the long zoom range. The prices for the new Oly 70-300 and the Pana 100-300 are a stratospheric $900 odd and out of my reach. That leaves two choices: Pana 45-200mm - Competitively priced ($270) and includes OIS. Some reports of softness at the extreme range but a 'native' lens so focus is pretty quick. Oly 4/3 70-200mm - available for around $300. Not stabilised on the GH1. Extra reach but is it hand-holdable. I have the necessary adapter. Unsure about focus speed. Well regarded for price on a 4/3 body. Advice gladly sought.