I'm finding myself really struggling with this scenario: Walking down the street, photograph someone as I walk past. Camera at waist level, autofocus, auto exposure, etc. It's how I do street photography. I like the results. Unfortunately the E-PL5 is giving me lots of beautifully exposed, delightfully framed photographs of fuzzy people walking past stunningly crisp backdrops. Any suggestions on how to convince the autofocus to focus on the subject, rather than the background?