Hi all, I'm new here and new to digital photography. I've got a Nikon D3000 and am learning how to use it. I'm interested in taking portraits and landscapes initially, and a photographer I spoke to recently suggested getting a 50mm f1.4 or f1.8 lens, I've been looking these up and I know that the f1.4 lens will operate at lower light levels, but have read several conflicting descriptions of the usefulness of this lens, some saying it is preferable over the f1.8 and some saying that it causes more distortion and there's no point paying the extra £100 for the f1.4. I'm wondering if any of you have experience of the difference and benefits to each lens to help me make my decision? Thanks!