Hello everybody, I recently acquired a factory demo 12-50. I have a question for anyone who has this lens. Is it difficult to find focus at 50mm? The focus hunts a bit at 50mm, often failing to find focus at all. Backing down to 48 improves the problem noticeably. I've noticed it outdoors in good lighting as well. Is this a normal tendency for this lens? Is it just a result of the aperture at the long end? I'm using this lens with an E-PL5. Appreciate any experiences with this lens, thanks!