Hi
I finally got guiding working and now I am thinking how to optimise the capturing process. I live close to the CBD with lots of light pollution, VLMag is about 4.5.
1. For my IR modded 1200D the optimum ISO is 1600 (or 3200). That was easy to find
here.
2. How to set exposure time to maximise the signal to noise ratio considering the light pollution?
I am finding lots of conflicting information about this. Some argue that histogram should be starting 10% off from the dark side, then I read it should be about 1/3 of the way or 1/2 of the way and then there is Expose to the Right method.
This covers pretty much the whole histogram range.
How do the more experienced images here pick their exposure time? From a dark site I am guessing that longer is better but what about from light-polluted places?
Thanks in advance
Luka