Quote:
Originally Posted by peter_4059
I was hoping you had the answer  |
I guess sometimes answers (and new questions) are generated by threads like this one
I think one way to verify which one is more precise for your system - manual focusing with Bahtinov mask or SGP focusing routine (or offsets) would be to take a few shortish exposures of the same area of the sky after focusing with all three methods and then to compare the stars. But the outcome from such investigation might be different for different setups, so it might not necessarily apply to everyone.
In my case, I would still go with autofocus in SGP for temperature compensation. For some strange reason I do not totally trust preset offsets, and Bahtinov mask is just not practical for long imaging sessions.