Hi, everyone. This is my first post on this forum, but anyways... I am really into live concert/band photography. Recently, some bands have been asking me to do promo photo shoots with them, but I really don't feel like I have the best equipment. I was wondering what the best lens would be for just regular (portrait-like) shots of individual band members and full bands together... I have a canon rebel... I don't have a specific price range, but probably less than $1,500 USD... Thanks for your help!