I'm currently taking a professional digital photography course but I just started last week and I just got this for a beginner camera. The Nikon D3300. My little brother was over and got ahold of it and before I realized he had already been messing around with the settings and even took the lense off of it. I'm really worried as I just purchased it and need it for my first assignment due in a week. My pictures are coming out streaking and orange ish. I've tried uploading a pic but it's says the file is too large. I would really appreciate any help. Please don't be rude or mean, I've already admitted I have no idea what I'm doing and I should have put it away before he came over. I just want to get it fixed so I can do my assignment.