I am wondering if anyone can give me some advice on some auto focus lens that I can use to improve my outdoor shoots. I'm a portraiture photographer and need it to get more light into my camera so I don't have to depend of my flash ALL the time. I contacted my local photo shop and they mentioned these two lenses. What's your input? AF-S 35mm 1.8 AF-S 50mm 1.4 Is there a HUGE difference between the two of these? Also 35mm vs 50mm. What's best for what I do? Thanks so much!!