$900.00. Nikon's = $450 or so. Can we criticize Olympus for a lens that is double the price? I don't think so. We know little about the economics of making, marketing and selling m4/3rds lenses. To say $900 is twice too much is debating without any real facts. For all we know, given the market, their position, Nikon is pocketing $100 profit on their lens, while Olympus is only making $50.00 on a lens that costs twice as much. Who knows? My advice? Buy the Olympus if you need AF and you simply want to, or look at adapting a Samyang or older Nikon if you need something in the $300-$400 range and don't mind not having autofocus.