For owners of the 45-175, I've had my 45-150 for a few years now, and I'm not excited about it, but it is good/fine. Closer it works well, longer range when I crop it is OK- that is where I wish it was better. Would the 45-175 work better to justify about $250 to swap these lenses with a used one from KEH? This is higher amateur taking outdoor pics. Is the Power OIS that much better than the Mega OIS when paired with a G85? Frankly I miss my old 4/3 3.5-4.5 Olympus 40-150- the one that I had produced really special pics, but all of this now is on a G85, so I can't really go back to the old 4/3 lenses. I don't want to go all out and get the Panny 2.8-4- that is too much money. I've thought a little about the 2.8 Pro Oly 40-150, but again that would stretch it to way too much even from their refurbished shop.