You can write your topic however you want, but you need to answer these questions:
What do you want to achieve?
I am making an Alarm System.
What is the issue?
When I slide the camera on the left, the BillBoardGUI almost turns transparent.
SurfaceGUI issue - YouTube
What solutions have you tried so far?
I found no solutions, so I am creating a topic.
thats a roblox issue not a script or something else issue. Make it always on top or something else aha light influence to 0
Try to set your surfacegui Sizing properties to SizingMode = PixelsPerStud, and the Pixels to be higher than the 50 pixel default.
If you have done this already, then also try to change it FixedSize and adjust your CanvasSize to the size you need.
One of these usually helps make the images clearer.