I've been using my 10 year old KM Dimage A2 and have been long overdue for more current technology. I just ordered the E-PL5 and hope to have it this week. My question regards some of the accessories that I have for my A2. I have some filters and the KM ACT-100 telephoto converter lens, all with 49mm threading. Should I just get a 37-49mm step up ring to use my old filters or just get newer filter(s) at 37mm? My filters are just about as old as the camera so the glass and coating tech has likely improved. What about using the telephoto converter lens with the kit lens and the step up ring rather than buying a longer zoom lens? Thanks for any thoughts and insights anyone can provide!