My camera and scope combination is able to resolve 2.25 arc seconds per pixel.
Does this mean I should set my imaging system up to toss out images where the guiding error exceeded 2.5 arc seconds?
What's a good level to try and maintain without being very aggressive? I want god images, with no blurred stars, but I also do not want to toss out images that wouldn't have shown that error anyway.
Second - Is there an advantage to getting my guiding error well below 2.5? For example, I adjust my polar alignment to the pint where the error was below 1 arc second. Was that a waste of time, if my system could only see 2.5 arc sec?