What is the longest unguided exposure you have managed to achieve?
Without any star trails what-so-ever, let us know which mount you are using and if it's a fixed or mobile setup.
I was able to do 5 min with the HEQ5Pro, fixed setup.
- The quality of your mount
- The quality of your polar alignment
- The focal lengh of your scope
- The ratio between your focal lengh and the size of your pixel ((2.4/800) *206.265 )) is totally different from ((3.8/2800)*206.265)
What I mean is that you can't compare a 200/800 with an ASI290mm and a 280/2800 with an ASI1600mm.
If you want to compare, you must do it all things being equal .