I have a Nikon D40 with a 18-55mm lens and I have tried changing my settings so that I am able to take a nighttime photo but the camera won't even take a picture period and I was wondering if it was because the object is further then 55mm and I need to get a stronger lens or if there is a specific lens for nighttime shots. Although I have been able to take photos about the same distance as the one I want to take during the day. Would greatly appreciate any help or recommendations on a type of lens to get.