Hi, I want to add one fast lens to my X-Pro1 setup. I currently have the 18/F2 and 35/F2. I have been looking at the 56 1.2 but I do not normally shoot a lot of portraits. The 56 would be a short telephoto lens for me, which I guess is ok although WR would have been preferable? Alternatively I guess I could sell the 18 and get a 16/1.4 - but that seem a little extreme as the 18mm havent done anything wrong so far, unless the 16 blows it away. The reason I want a fast lens is to compensate for the dark hours, of course, which we have plenty of during autumn/winter. Any thoughts?