Common Problems That Are Most Likely a Bad Shutter – A7 iii
Physical Damage: Shutter Blades look out of place, you can see the Curtains of the Shutter and they are Damaged. Shutter is stuck closed.
Error Messages: Sony Camera Error “Turn power off then on” Appears on the Camera Screen.
Exposure Problems: Exposure is not right, Part of the image is black, Crescent Halo Shape In Image, Semi circular artifacts.