It looks like the light was too bright and your camera just filled in the brightness with blackness, if that makes sense.
With one of my old cameras, whenever I took photos that had the reflection of the flash in them (I might have been taking a photo of something in front of a window or mirror for example), there was sometimes a small black area in the centre of where the flash was.
I don’t know what caused it, and certainly don’t know the technical name for it (if there is one), but that’s what I think it is.
I don't think it's anything supernatural.
|