3783 – The Carpenter’s House Olympus M.Zuiko Digital ED 40-150mm f/2.8 PRO Feb 272017 Back to Carinthia. This is again an image taken with a 40-150, but this time it’s the big gun, the f2.8 PRO. Even at f8 it makes a difference, but it is not substantial in terms of sharpness. In terms of focusing speed it is though. Sorry, the comment form is closed at this time.