question on schwarzschild effect

[polyglot]

I believe it reverts to its original, sensitive state. I ain't a chemist though.

[Ole]

As a chemist, I don't know. I think it is possible but unlikely that a crystal could be "desensitized" in a low photon flux. Someone with more knowledge of solid-state physics might know.

As to the term Schwarzschild effect, my first association wasn't to Schwarzenegger (I read German, when I have to), but I did wonder for a moment about the photographic application of black holes.