The top or bottom halves of pictures appear black or cut off horizontally when using a flash or studio strobe
IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article before starting these steps.
This issue occurs when the shutter speed is set to a value faster than the camera's flash sync speed, or to a value faster than the shutter speed recommended for the flash. To resolve this issue, slow down the shutter speed.
IMPORTANT: For a camera with a 35mm full-frame image sensor, set the exposure mode to Manual Exposure mode (other than ISO AUTO is recommended) and set the shutter speed to either the camera's sync speed or the value recommended by the flash, whichever is slower, or to a lower speed than that.