Which one lense would you want to make sure to have when photographing a wedding? By the way, it's a mock wedding with photographers and models, so it's not the end of the world. It's for practice and portfolio building. Only time I shot a real wedding was when I was 17 and my cousin decided it was okay to let a hobbyist little kid take her wedding photos, yikes!! (being young enough at the time I was like, "sweet!" and went ahead and took a bunch of crappy pictures ) The one lense I'm thinking about is the 24-70mm f2.8. Any other suggestions?