Photo through a grid

When observing and shooting luminous objects (lanterns, moon, etc.) through a mosquito net, they can take the form of a cross. Because of this, they can be mistaken for something abnormal (UFO, omen, ghost, etc.). At the same time, the grid itself may be out of focus (i.e. it becomes invisible), which makes identification difficult.

Identification can be assisted by searching for other objects in the frame with similar properties (lanterns, stars, etc.)