A character takes a picture with a camera, and the photo develops, revealing that the picture taker had his/her finger(s) on the lens or left the lens cap on, obscuring the intended target of the photo. Bonus points if the camera in question is a SLR camera, because the viewfinder uses a mirror and prism to show the exact view through the lens, requiring a truly monumental level of stupidity. Usually fully justified when the camera in question in a vintage viewfinder camera. Examples of Camera Obscurer include: