If you've got the cash (?14k!) then this may of interest...

Interesting video here...
http://www.bbc.co.uk/news/technology-34583397

Info from Canon...
http://cpn.canon-europe.com/content/product/camcorders/canon_me20f-sh.do
"Because of its ultra-high ISO and low light capabilities, the ME20F-SH will appeal to production companies looking for a small yet incredibly flexible camera that can be used to capture unique night time wildlife scenes or for deep sea/cave exploration."

Nice footage of glow worms (with article)...
http://www.4kshooters.net/2015/10/20/another-mind-boggling-footage-shot-on-canons-new-ultra-sensitive-camera-the-me20f-sh/
or the video here...
https://www.youtube.com/watch?v=e8E5uM7bJa8

General review...
http://www.dpreview.com/articles/5496399487/canon-multi-purpose-me20f-sh-camera-reaches-iso-4-million