DxO recently posted their "best lenses" roundup for the E-M1. Checking those, a somewhat disturbing pattern emerged. Although some lenses seem to excibit the same "sharpness" (the way they define it) as the E-M5, in some important cases the E-M5/lens combination seems sharper. Examples are the 75mm f/1.8, the Panasonic 20mm f/1.7 (first version), etc. In no case is the E-M1 sharper. That said, they seem to measure slightly better light transmission in those lenses on the E-M1! So, what gives? Is this some flaw or variation in the measurement? Or does indeed the E-M1 sensor doesn't use the lenses as "efficiently" as the older OM-D?