Hello everyone, I am trying to decide which way to go. 1. Fast primes, get the Olympus 12 and 17 to go along with my 25 and 45 lenses. Or 2. Get the 12-40 Pro and loose some available light options. Is the 12-40 as good as the primes? I have seen stellar reviews on the 12. I have shot with primes mostly since the 80's I always felt they were superior to zooms. Is that the case here? Thanks!