Need some opinions. I have an Oly OM 50 1.8 w/adapter that I'm using on my EP-2. I like the results. I'm surprised by the amount of background blur. I thought this was only possible on FF Canikons . But I want to keep my M4/3 kit as small and light as possible. I will mainly use it for street & travel. Do you think I'll gain any better IQ from the smaller 40 Voigtlander?