We are flying with Delta from SLC to Dublin, Ireland. I have found Deltas carry on size restrictions but they also mention that you can have a personal item like a purse, breifcase, or camera bag it just must fit under your seat. They don't state the size it can be and I am worried that they wil make me check my camera backpack, which terrifies me because I have put so much money into my camera. So does anyone know deltas restrictions for a personal item? HELP?