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14 Nov 2018
Glad to announce of release of INDI Library v1.7.5 on 2018-11-14. A few drivers were added in this release as we continue to improve & stabilize existing drivers.
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TOPIC: Issue with flat capture

Issue with flat capture 2 months 16 hours ago #29569

  • rmor51
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I make an update yesterday and I try to make flat with a Canon 1000D and a box led flat.
I choose flat in TYPE field.
In Calibrage I set flat source manual an d flat duration ADU=2500 (correct for a 1000D?)
I set 10 images and save the sequence.
I launch the sequence. Ekos takes one shot (with the exposure set int the screen 1 sec by default) and stop. The status of the sequence is inactive. If I restart this, back to the desktop directely. None image is captured into the flat directory.

I join the log file.

What happens ? Thank you for your help.
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Last Edit: by rmor51.

Re:Issue with flat capture 2 months 15 hours ago #29572

I don't see the version in your report, but this particular issue was fixed by phabricator.kde.org/D14977 . But I don't advise you to switch to kstars-bleeding right now as we are reworking dbus communications, unless you are ready to move commits around.

Another issue you need to be aware of is bugs.kde.org/show_bug.cgi?id=398301 . This one will certainly annoy you if you start using flat calibration, so try not to wreck a night of observation because of this!

-Eric
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HEQ5-Pro - Atik 314E - Orion ED80T - DMK21 on Orion 50mm
DIY 3D-printed Moonlite and FWheel RGB/LPR
KStars and indiserver on two Atom 1.6GHz 1GB RAM Linux, VPN remote access

Re:Issue with flat capture 2 months 9 hours ago #29583

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Deleting the flat sequence also crashes Ekos with back to the desktop.

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Issue with flat capture 1 month 3 weeks ago #29652

Salut !
Same issue here. I have tested with different cameras, different calibration settings, I get the same result, as shown in the attached video
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Last Edit: by bilbo-le-hobbit. Reason: modify file

Issue with flat capture 1 month 2 weeks ago #29894

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This issue doesn't seem to be passionnate for the community !

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Re:Issue with flat capture 1 month 2 weeks ago #29898

You mean you tested kstars-bleeding and it's still there? Or that we're still stuck with 2.9.8? Or you are surprised that not that many people report the issue?

-Eric

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HEQ5-Pro - Atik 314E - Orion ED80T - DMK21 on Orion 50mm
DIY 3D-printed Moonlite and FWheel RGB/LPR
KStars and indiserver on two Atom 1.6GHz 1GB RAM Linux, VPN remote access

Re:Issue with flat capture 1 month 2 weeks ago #29899

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I use kstars-bleeding 2.9.8 and effectively I am thinking that few people use this function.

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Re:Issue with flat capture 1 month 2 weeks ago #29901

Just tested with simulation in nightly and it's working, please try to v3.0.0 nightly that should be available within an hour or two.

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Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info

Re:Issue with flat capture 1 month 2 weeks ago #29914

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Thank Jasem. Kstars is a great soft and I prompte it in my club. I'll try with nighly ad soon as possible.
Best regards

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Re:Issue with flat capture 1 month 1 week ago #30025

  • rmor51
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I tried nightly version and the flat calibration runs but with some strange issue. I have not identified precisely the problem. I left the exposure time at 1 sec by default. the process starts and after 2 or 3 capture, it stops with message: Cannot set the right exposure or something like that.
I change the time exposure from 1 to less than 1sec. I restart the process and It runs well or not. It is difficult to reproduce precisely the issue.
I read the log but I am not enough fluent to understand everything.
The material is a Canon 1000D unfiltered, ADU manual, ADU=2700 +/- 100.

Thank you for you support.
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Re:Issue with flat capture 1 month 1 week ago #30032

Ok from the logs you can see the ADU result for the 4th 0.1s capture is odd which threw off the polynomial fitting. I slightly adjusted the algorithm to discard the last point and retry again.

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Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info

Re:Issue with flat capture 1 month 1 week ago #30048

Jasem, I think you should also limit the number of samples to avoid bringing too much statistical noise in the polyfit algorithm.

While you are at it, probably an additional linear coefficient should be added to extract further ADU evolution from frame to frame once a ADU inside tolerance is found. But that's probably out of scope for your activity as it pertains to dawn/dusk flats :)

-Eric

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HEQ5-Pro - Atik 314E - Orion ED80T - DMK21 on Orion 50mm
DIY 3D-printed Moonlite and FWheel RGB/LPR
KStars and indiserver on two Atom 1.6GHz 1GB RAM Linux, VPN remote access
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