QuoteWhat is the ratio between 'how the mount can track fine' and 'how long exposures are expected'? (should be interesting to know the sampling on the imaging camera and an tracking error log on the mount) Because if it is only a question of polar alignment drift compensation _every nn seconds_ there are other solutions (if you see what I point ).
The setup is very basic, it is a Meade ETX Alt-Az mount which has poor tracking when the camera is attached. It can manage only 3 seconds of good tracking before it needs a correction. My goal is to increase the S/N of the images, hence I wanted longer exposures on the cheap, and wanted to try guiding while exposing, hopefully using silent pics with ML.