Have an Olympus OMD and own the following lens which I have traded wheeled and dealed..Oly 12-50, Oly 14-150, Oly 45, Oly 75, Pany 20, Pany 14. I am not willing to part with the 45,75 or 20, but was thinking of getting rid of the others and investing in the Pany 12-35... I moslyt shoot kids (action & portrait) and like doing faces on trips, or markets etc. Street scenes also appeal.. Thought from the crowd. P.S. Anyone think it is necessary to own a long zoom, if so what do you recommend? Thanks in advance!!!