Rear screen is broken.
There is a 'spiders' web' smash-mark covering the entire screen radiating from a central point, as though it has been hit by a sharp point. Although functions such as zoom still work, there is nothing usefully visible on screen, either in Camera or Review mode, except a narrow strip down the left-hand side.
How can I replace the screen, and how do I purchase one (in the UK)?.
Is this a good question?