what do you guys recommend for shooting a portraits? I have been using my little 50mm prime 1.8 and really like it. my sig box has what i currently own. since i have my little studio set up i am curious what you guys are using. I know their are some great L lens out their. but being just a novice i am not ready to fork out that kind of money yet.. Once i start shooting for money i might be interested in the future. Let me know..