This was one of my biggest complaints when I was on the ER.
The quality was rubbish most of the time, JFK at night was a place the ER really needed it to work but.........
In the day it was over exposed and in the dark it was under exposed!!
You'd think a 250+ million dollar aircraft could be fitted with a decent camera just like most new cars?????
I wrote up the defect many times only for Engineering to clear it saying "appears normal"
It'll take a Taxi incident for the Airlines to complain to Boeing.....( they'll still blame the crew however )