Just getting back into the astronomy thing - well I was at the practical astronomy astronomy show in the UK the other weekend, where I saw a talk by Dr Robin Glover, an expert on CMOS imaging.
The talk was about noise and controlling it vs. signal. It explained the maths behind "short subs vs. long subs" thing, which I found very interesting. It turns out long sub exposures and deep cooling may not be that important.
There were also graphs showing temperature vs. noise and an explanation of the maths behind stacking as well as the impact of sky glow and narrowband filters. It all made total sense to me.
Luckily it was posted it up on YouTube so here's a link: https://www.youtube....h?v=3RH93UvP358
Really useful information here and I'm interested to hear what you think.