The situation is as follows:
There is a very dark room.
Inside the very dark room, there are some orange lights on the ceiling
Inside the very dark room, there are many glass windows.
Behind the glass windows, there are some creatures.
Here is an illustration (top view):
Black represents the wall of the dark room
Yellow represents the glass windows
Orange represents the orange light
Brown represents the divider wall
Green represents the creature
Blue represents the door
So, how do I take photo in such a scenario?
I know that I have to set the ISO to very high (1600 or above) and set the aperture to a lower value (e.g. F/1.8 or below) but the quality will be affected.
Do take note of the following:
no flash allowed.
no big tripod allowed. (A small tripod is allowed but there is no place for you to put the small tripod.)
the creatures will be moving about (sometime slow, sometime fast)
there are obstacles such as trees behind the glass panel.