Thought I'd tap into your guys knowledge base as well, even if I posted it on dpr. Now that I got an E-M1 I can't wait for the Oly 40-150 f2.8 to finally get released. I'm thrilled with the E-M1 and current 12-40 f2.8. For ultra wide I still use my beloved 9-18, yes its not the fastest but for daylight Landscape great. Now I like to replace my 14-150 Oly lens with something faster. Yes the option of the Panasonic 35-100 f2.8 is there but more often than not I would probably use the 2.0 digital converter which then gets me down to only 8MP so not much more room for cropping if I want to. Or am I wrong about the megapixel being cut in half using the 2.0 digital converter? How would the standard 40-200 f2.8-3.5 Olympus 4/3 perform on the E-M1? Can I expect the AF speed similar to the 35-100 f2.8 Panasonic. Thanks.