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INDI Library v2.0.7 is Released (01 Apr 2024)

Bi-monthly release with minor bug fixes and improvements

Announcing StellarSolver 2.0

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Did you do an update of kstars? I've seen that change some settings (like toolbar visibility) now and then, though I don't really understand how that happens (unless options get renamed?).

I also only had one run so far with the new scheme, and focus seemed clearly better than before. I'd like to get some more data, including focus debug messages....
1 year 10 months ago #83630

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Really I don't understand what's happening here. I thought that the changes to use G channel by default was in place, but after a long pause for weather and health problems I've been again under stars with bad results.

I'm using 64bits Stellarmate with KStars 3.6.0 (the latest stable one).
On FITS viewer, I've configured 3D Cube checked and WCS checked (this latest is not needed).
On the focus module, I've configured detection SEP and SEP profile to the standard 1-Focus-Default. The algorithm used is Linear 1 Pass (but I think that doesn't matter)

With this configuration I expect that the focus algorithm will use the green channel or the average of them (I don't remember which one was the final decision). But what I've found is that it keeps using the R channel with bad results for the other two. This is the top left corner. You can see how the spikes of the bright star begins to duplicate and separate, also, this will show coma on G and B channels:


Red


Green


Blue

So my question is: are there any way to influence which channel is used that I'm not aware of if?. Are there any information logged out about the kind of image StellarSolver is using here?

Thanks a lot
1 year 6 months ago #86673
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Rob, do you have any clue about this? How can I be sure that I'm using the channel I hope to be using?
1 year 6 months ago #86845

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Two things: Last time I tried focusing with my OSC camera I also got bad results, so you're not alone.
Second, I had the impression the stellarsolver lib does what it's supposed to, i.e., when getting a color cube image, use the green channel. If that doesn't work, the culprit (IMO) must be EKOS. Either it debayers but then sends only the first channel, or it sends the raw file (but there green should definitely dominate).
1 year 6 months ago #86851

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Thanks Peter to confirm my bad results. Now the question is, how can we improve the results with OSC cameras? Any clue about how to proceed?

Regards
1 year 6 months ago #86854

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Hmm, a quick solution could be to put the camera into a grayscale mode (LUMA or monobin) for running the focus routine. Not sure though if that would work for automatic refocus, though.
1 year 6 months ago #86856

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