I'm trying to decide whether to put money into the Kipon adapter that supports AF and a Canon EF tele, or the Oly 50-200mm and MC-14 TC. Q: Using Dxo's scoring system, the native mft teles generally score very low for sharpness compared to standard full frame lenses. How much of that is due to the sensor on the body the lens was tested on? Or, would a standard USM (non "L") 70-300mm score comparably to the Oly 75-300MM? They have not tested the Oly 50-200mm. Would it score comparably to a Canon 70-200mm L or 70-300mm L if it was tested on a full frame 24 mp body?