The newly bought SLR camera Nikon D5300 has a shadow in the middle.

It is the hood that blocks the shadow formed by the overhead flash. There is no shadow in photography without flash during the day. The height of the dome light of SLR camera is not too high, and the projected light is easily blocked by the lens hood, especially when the lens is prominent for a long time. Removing the hood may improve this situation. If an external flash lamp is installed on the hot shoes, the lampblack machine will not form a shadow because of the high lamp cap.