A question from a client: “I took this photo, obviously poor quality, in a building in KY my brother is renovating. So a camera fluke I don’t know about, or a ghost?”
“It looks to me like “lens flare”. It’s caused by very bright light bouncing around inside the lens. In a digital camera, it’s also possible to have flare caused by the sensor. In this case, the light comes into the camera, bounces off the sensor, and then bounces around inside the lens.
When pointing the camera towards bright light, flare is very common, unfortunately… takes some work to get a shot like this without any flare. A lens hood helps, as may certain filters, such as polarizer. But some shots, at certain angles, will always result in some flare.”