I have an Ao from starlight xpress.
From using it I can say the following:
The seeing is unfortunately still much faster that the 2,5 hz of the ao. So the challenge is to make the ao very fast. Then the next challenge is to have a guide cam that is sensitive enough to find guide stars below 0.5 seconds exposure and can transmit that to the pc... and the last challenge is the software..
If the system always runs after the seeing, it will correct after some time, but then the star is already somewhere else. In that case, the system does not achive much.
As for mount errors:
With zwo cameras one can exclude these by doing lucky imaging even with deep sky objects.
So unless one solves the problem of a really fast very low latency guiding system that can adapt to seeing, there is not much need for an adaptive optics.
They may have been useful at times when ccd sensors only allowed 15 minutes exposure to capture enough signal. But with zwo sensors they are not that much of use, at least if one has a "slow" correction of 2.5 hz or so...
If zwo would come up with a working solution here that is really fast enough to reduce seing problems, then it would be a great achivement...
