Along with the Olympus OM-1 reveal today, OM Digital solutions unveiled a mildly revised m.Zuiko 12-40mm f/2.8 Pro and a brand new ultra-compact 40-150mm f/4 Pro. m.Zuiko 12-40 f/2.8 Pro II OM System 12-40mm f/2.8 Pro II The 12-40 is exactly the same optical and mechanical design but is now certified a step up to…