Original 2.5K cinema camera shold be fine plugged in and turned on all day. I would not keep the BMPCC on all day. It already heats up pretty good in 20 minutes of recording use. I’ve recorded about 45 minutes in one go at max with the pocket.
Not having had either connected to a monitor, I don’t know about the latency issues for sure, but I don’t see why there should be any noticable latency.
Neither camera is particularly good for low-light conditions, with native ISO at 800. Only with a special lens (F1.4), I’ve managed to get the pocket to come out decent in low light.
The new BMPCC 4K is a much better option for low light with dual native ISO.
Kalleheikki Kannisto
Senior Graphic Designer