If you thought the Sony A7S was sensitive, take a look at this video shot on the Canon ME20F-SH
https://vimeo.com/180637962
No, I haven't bought one :)
2.2 Megapixels is quite a limitation for astrophotography but the reduced pixel count is definitely how they push the signal-to-noise ratio to incredible levels so it's great for night time video. I suspect this video was shot at F1.4 - i.e. the fastest setting on the Sigma Art lens.
By the way, the professional looking video production makes astronomy look like great fun!
Mark
impressive - the camera I use is only 1.4Mp :-( granted its not full frame though... But that Canon is expensive.. John
blimey just looked it up...£25K - I'll take two..... :-(
oh dear, i was just going to buy one!