I bought a screen protector for the LCD display on the back of my Nikon D40, and I just have to share the wonderful text on the back of the package, which reads:
I’ve already expressed my incredulity at this sort of stuff; this one is just for your reading enjoyment.
Incidentally, the product itself is excellent, far better than the cling-on film type protector I tried before it, which simply fell off one day (in other words, did not have preservation status such as new product). This one is rigid and attaches to the camera at its raised edge. And of course, it always keeps 100% transparency because become UV coating processing work!