Wednesday, November 26, 2025

20251125 Electronic focuser added

I started using my 85mm refractor for imaging in the last session.  We have clear sky again tonight so I inserted the electronic focuser in the imaging chain.  Autofocusing by the ASIAir is simple but it takes some a few minutes.  

The first result was bad, but then I do the whole thing once more and it comes out great

Not bad it seems and I will let it run for at least one or two hours, NGC6888 or the Crescent Nebula, or maybe even leave it for the rest of the session since I am rather busy.

The 85mm refractor was calculated to be 511mm.

The guidescope setup was about perfect, just a minor tweaking on the focuser will do the job, highly repeatable and that saves a lot of effort in the cold air outside. 

The S30 is going as well, there's simply no reason not to pull it out.

It's taking image of the Iris Nebula NGC7023 or the Caldwell 4 and I will probably leave it for the rest of the night.

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