I debating if its worth changing my current Lumix 35-100 2.8 to the Zuiko 50-200mm f/2.8-3.5 ED SWD with adapter on my E-M1. While I like the image quality and focus speed a LOT of the Lumix mounted on my E-M1, I find myself sometimes perhaps 50% of the time wanting more reach. Wish there was a 1.4x or even 2x extender like Olympus made once for 4/3 lenses. BUT the MIGHT of the 4/3 lens is MUCH larger and also weighs more than twice as much. Perhaps wait for the release of the new 40-150 2.8 from Olympus? Any thoughts anyone went through the same dilemma? Can you share your experiences please?