When I bought my D610, I instantly bought the 50 1.8G along with it..because I thought..if you have a full frame camera..you gotta have a 50 to go along with it. For my style of shooting...I found the 50mm focal length not my favorite, so I ended up buying the 35 f/2D and absolutely fell in love with that lens. It hardly comes off my body. I find the 35 f/2D far more versatile for my style of shooting. Since buying the 35 f/2D, I maybe used the 50 1.8G maybe twice. Not that its a bad lens or anything..its sharp..awesome bokeh..but I just didn't "feel" it you know? So what I am thinking of doing is selling the 50 1.8G and my vintage Sigma 28 f/2.8 MF lens (it doesn't handle the 24mp sensor very well) and putting it toward a ultra wide angle lens. I'm a budget right now so I'm looking at the 20 2.8D and the 18-35D. I know a lot of people like the 20 2.8D, it is a pretty decent lens and not terribly expensive. But I'm really unsure about the 18-35D...I heard a lot of bad things about it but I know a few people here have got that lens on the cheap and said its actually pretty good. But I just want to hear your opinions. Is there any really reason to keep the 50? The only thing it might be useful is portraits in a tight location when I can't use my 105 2.8G..but then again..I rarely do portraits anyways! I think having a ultra wide angle would be far more beneficial to me. It would be a goal to get a higher end ultra wide like the 16-35 f/4 or maybe even the 14-24..but I just can't afford that right now and I just want something to get me by for now.