This tends to be a “Holy Grail” kind of topic. I have experienced far too many evenings where I have imaged for hours, but the sky glow corrupted the images so badly that they were not usable. I end up asking myself, “Would a longer exposure have been a better choice?” or “Was this just a night to keep the telescope in the house? I decided that I need to research this subject more. I have read lots about “swamping the Read Noise,” which sounds like a good scheme. If…