This is strictly a curiosity question. Looking at the history of zoom lenses, it seems the most popular choices in full frame has been 24-70mm and 70-200mm. Olympus copied that with their SHG lenses on 4/3 systems (12-35mm & 35-100mm) and Panasonic has done that with their m4/3. I am very curious to find out Olympus' reasoning for making 12-40mm (24-80mm) and 40-150mm (80-300mm). Does anyone know if Olympus has ever addressed this question in an FAQ, or an interview or something like that?