I plan to try it this weekend but I'd like to know if anyone uses the Panasonic 100-300mm zoom often on the GX7 body and what think about the handling, balance and results they get with this combination. Frankly, while the G5 isn't a bad camera at all, the only reason I had it for quite a while was to use lenses like the 100-300 on it. It was necessary because my only other :43: body was the Oly E-PM2. But now I have both the GX7 and the E-M5. So I'm wondering if I need to hang onto the G5. I can always gift it to my niece, who has a small :43: kit. Any feedback is welcome.