Hi Robin
Clearish skys tonight so I was able to run some more tests.
Ive attached 2 logs for two separate sessions.
The step count appears to increase by 1 every time I run autofocus. So the first time I ran it it did 11 steps. Then each time I ran autofocus it added one or two steps. I checked the options panel the first few times, it still showed 10 steps.
The first time I ran autofocus it was ok at10 steps. Then each time it increased by 1 or 2 steps: at 20:03 =11 steps, 20:08 =12 steps, 20:25 15 steps, up to 18 steps. Below are two of the log lines from the first autofocus in the first session to the last autofocus in the second session.
Debug 19:55:10.731063 #1 Sequencer : Info : 'Refocus scan configured to use Multi-Star FWHM Measurement for scan about 1650 from 1600 to 1700 using 10 steps of 10, 3 samples, allowing for backlash of up to 0' while running step Refocus using the same settings as the most recently used autofocus run
Debug 20:25:11.267724 #1 Sequencer : Info : 'Adjusting step count to 18 to cover the range with step size of 5' while running step Autofocus between 1541 and 1631 with 15 steps allowing for backlash up to 0
Interestingly. When I started the first session, I noticed that the option tab had reset to 24 (the value it had acquired last night- even though the option panel only showed 10 last night. So i reset it to 10 steps again. I monitored this for the first few autofocus runs in the first session, and it stayed at 10. BUT when I restarted SC for the second session it had changed to 15!
I also note that from the 20:25 log above, the autofocus routine decides by itself the number of steps and step size to cover the range it picks.
I did try adjusting the backlash setting in Settings/Hardware/focuser from 20 to 30 to 40 (the SC controls radio button). But from what I can read in the log, it did not recognize it and shows backlash zero? Eeven after restarting SC.
I´ve also attached a screenshot of the last autofocus curve, which looks pretty good. Different from last night, I see that tonight it moved in the OUT direction (green), even though I did the scan in the IN direction. Was this because I clicked the SC radio button in settings/hardware?
Either way, it does appear to be working, and does refocus the camera nicely.
By the way, the SESSION log 1 contains some detailed focuser log info (i switched this on between 19:26 and 19:31, just in case it could provide you with any additional insights.
What do you think?
Best
Mike
- CaptureSCautofficusBL40-restart18steps.PNG (426.06 KiB) Viewed 872 times