I need some guidance understanding the auto focus routine.
I’m running autofocus with “Smart AF” off, SGP does it’s thing and says that the best focus point is 23200 but we can clearly see on the graph that the best “estimated” focus point is bellow that, it should be where the two lines intercept. No matter how many times I hit “Run Again” the result is always 23200 (in this example), so I assume i have no slippage nor issues with the AF routine.
Now if I go into settings and enable “Smart AF” SGP behaves as it should, moves the final focus point to the interception of the two lines around 23093.
If I ran it again the best focus point stays within the expected range and dead on with the line interception point.
The problem is, if for some reason a cloud appears and “Smart AF” is on, the focuser goes bananas and gets out of it’s focus range by automatically extending it’s range… meaning SGP will no longer be able to find the correct focus point.
So would it be possible, or how can I setup SGP in a way that I have the good of the two worlds:
- SGP moves the focus point to the line interception point
- If focus fails or no line interception is found then SGP would not extend the range of the focuser and instead fail the sequence.