I'm a bit disappointed at the quality at darkness. But I think it may be improvied with some settings/configuratrion. Does anyone give me any idea/option/hint on this? I use this cam on rear window, which is covered with smoked black film.
Camera is perfectly performing fine what it is supposed to do. Actually due to dark film on rear window seems "night" for the camera. And Camera is trying to push the brightness which is turning the image quality showing "higher ISO"..
You should just remove some part of the film form window, Just make a small square like masking kind of cut with a cutter from window film...
See this image to get an idea.. https://image.shutterstock.com/image-photo/car-window-tinting-series-cutting-600w-421903279.jpg