Here's the dilemma, I want to purchase a 50mm lens to have as a "walk around" lens with my NikonD800. My thinking is a versatile lens, a fast one, and one that will work for portrait and food shots (the latter is my real passion). I've done some research and the 1.4 Nikor one seems a perfect match for the camera, but it costs wellover $500 here in Canada. Nikon has a 1.8 aperture 55mm that is MUCH more inexpensive, under 200. What do people think? is the 1.4 THAT much better? Is one paying for just the extra .4 aperture setting, or is the glass that much better?