Hello all! I'm using a d5000 and i've been considering getting a 35mm lens for walk about / portrait photography. However i'm torn between the 35mm f2.0 (for full frame) and the 35mm f1.8g lens. I understand that if i get the f2.0 i'll have around a 50mm lens but i'm okay with it (i do better with manual focus too). the problem here is i'm not sure which lens has better optical quality or bokeh. there's also the sigma 30mm but the price is putting me off. oh well.. how?