Hi @keramos
i think you did it correctly. If you get a proper V-curve and AISAir Pro is able to find the best focus position, it will set it automatically for you. You should be able to prove this, if you look at one of your images – the stars should be tack sharp. If not, there is something going wrong.
Once your images are in focus, ASIAir Pro or EAF will not automatically keep focus. You have to configure that first in the ASIAir App. If you look at my last screenshot above, there is an Auto Focus Menu entry. Touch it and you get to some additional settings, where you can make some adjustments, when to focus again. I usually set it to refocus when
- temperature changes 2 degrees Celsius
- filters change (this should be mandatory, because every filter has its own thickness and will affect focus!)
I enable the following occasionally:
- before starting an autorun session (i only use this if i focused during twilight, but my imaging session starts later in the dark, then the temperature might have dropped, so it should refocus)
Hope this helps. It's also worth a look into the manual (yes, who reads manuals, but sometimes they are helpful 😉 ): https://astronomy-imaging-camera.com/manuals/EAF_Manual_EN.pdf
On page 30 in the manual, there is some additional info about measuring backlash. ASIAir Pro will handle this by itself if you set it to 0, but for other software, it might be worth findig out the proper value.
Good luck and clear skies!
[edit] oh, and make sure that belt and gears from Deep Sky Dad's adapter sit tight. I once wondered why my focusing routine was not working – it turned out, that the gear which sits directly on the EAF's well was not tight enough and caused major backlash.
[edit2] for manually focusing using the ASIAir App, i think you can keep touching the buttons, but it will only give another impulse to EAF, if EAF finished the former focus adjustment. If it's too slow for you, you can switch between slow (fine) an fast (course) in the focuser UI and move it at the speed of your liking.
