Hi, at this moment I'm evaluating a come-back to M43. (I previously owned a E-PL1). My current set-up is a Pentax K5 with a Sigma 17-70+Tamron 70-300. I just sold my backup-camera (Pentax K10D) and my studio-flashes to get a smaller (M43) backup camera. While reading about M43 maybe I sell the K5 as well and move entirely over to M43. Before I do that, I would like to ask you some questions of which I can't find a definitive answer myself. I'm still in doubt about several different models and which one to buy, but will read the entire (!) forum first before posing any questions on which one to buy 1. On the DSLR''s I have/had I was keen on having AF adjust to be able to correct back- or frontfocus (and needed it). On M43 camera's I don''t see this options and I read somewhere that this was due to the AF-system which is measuring on the sensor and thus focus is always OK. Is that correct? 2. my E-PL1 could control the FL36R flash from the camera (TTL) but as I can remember the internal flash always was visible in the images as well. Is this still the case on newer models? And can Panasonic camera's control a FL36R wireless as well (TTL) 3. In fact, I'm very satisfied with my K5, it's a great cam and along with the 17-70 from Sigma pretty versatile. Buying some better lenses is a problem however if you're on a tight budget. New lenses are a bit too expensive and 2nd hand for Pentax is hard to get (and overpriced as well as there are more buyers then sellers). So a switch to a G5/6 or E-PL5 from the K5 would also be an option and then add a 20/1.7 and 45/1.8 (OM-D is maybe a bit too expensive for me when needing still a smaller backup and the 20+45). Are there reasons to convince me to either keep or sell the K5 ? Just to help me make the decision? (for samples of what I usually shoot, take a look at my website; although it is written in dutch you can get an idea from the blogposts and portfolio.) Thanks for your input!