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INDI Library v2.0.0 Released (01 Feb 2023)

Bi-monthly release with major changes to INDI properties and client API in addition to new drivers and improvements.

Issue with flat capture

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Salut !
Same issue here. I have tested with different cameras, different calibration settings, I get the same result, as shown in the attached video
The following user(s) said Thank You: Alfred
Last edit: 4 years 4 months ago by Eric Magnien. Reason: modify file
4 years 4 months ago #29652
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    Screencast...4457.mkv

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Replied by MORELLI on topic Issue with flat capture

This issue doesn't seem to be passionnate for the community !
iOptron GM28 - ED80 SW - MAK180 SW - ASI183MM PRO -QHY224C - RPI4 4Go + Stellarmate/Nafabox/Astroberry - Focus motor DIY
4 years 4 months ago #29894

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Replied by Eric on topic Re:Issue with flat capture

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
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
4 years 4 months ago #29898

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Replied by MORELLI on topic Re:Issue with flat capture

I use kstars-bleeding 2.9.8 and effectively I am thinking that few people use this function.
iOptron GM28 - ED80 SW - MAK180 SW - ASI183MM PRO -QHY224C - RPI4 4Go + Stellarmate/Nafabox/Astroberry - Focus motor DIY
4 years 4 months ago #29899

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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.
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
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4 years 4 months ago #29901

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Replied by MORELLI on topic Re:Issue with flat capture

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
iOptron GM28 - ED80 SW - MAK180 SW - ASI183MM PRO -QHY224C - RPI4 4Go + Stellarmate/Nafabox/Astroberry - Focus motor DIY
4 years 4 months ago #29914

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Replied by MORELLI on topic Re:Issue with flat capture

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.
iOptron GM28 - ED80 SW - MAK180 SW - ASI183MM PRO -QHY224C - RPI4 4Go + Stellarmate/Nafabox/Astroberry - Focus motor DIY
4 years 4 months ago #30025
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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.
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info
4 years 4 months ago #30032

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Replied by Eric on topic Re:Issue with flat capture

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
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
4 years 4 months ago #30048

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Replied by MORELLI on topic Issue with flat capture

I make testes with version 3.0.0 Nightly.

2018-10-06T21:17:35 CCD capture aborted
2018-10-06T21:17:28 Capturing 3 600,000-second image...
2018-10-06T21:17:28 Current ADU is 3647 Next exposure is 3 600,000 seconds.
2018-10-06T21:17:25 Capturing 0,422-second image...
2018-10-06T21:17:25 Current ADU is 3649 Next exposure is 0,422 seconds.
2018-10-06T21:17:23 Capturing 0,562-second image...
2018-10-06T21:17:23 Current ADU is 3649 Next exposure is 0,562 seconds.
2018-10-06T21:17:19 Capturing 0,750-second image...

I start with the default exposure 1 sec. Then I set up the time exposure to 0,5 sec:

2018-10-06T21:20:50 CCD capture aborted
2018-10-06T21:20:49 Capturing 0,333-second image...
2018-10-06T21:20:49 Current ADU is 3605 Next exposure is 0,333 seconds.
2018-10-06T21:20:46 Capturing 0,333-second image...
2018-10-06T21:20:46 Current ADU is 3607 Next exposure is 0,333 seconds.
2018-10-06T21:20:43 Capturing 0,334-second image...
2018-10-06T21:20:43 Current ADU is 3605 Next exposure is 0,334 seconds.
2018-10-06T21:20:40 Capturing 0,333-second image...
2018-10-06T21:20:40 Current ADU is 3604 Next exposure is 0,333 seconds.
2018-10-06T21:20:38 Capturing 0,333-second image...
2018-10-06T21:20:38 Current ADU is 3606 Next exposure is 0,333 seconds.
2018-10-06T21:20:35 Capturing 0,333-second image...
2018-10-06T21:20:35 Current ADU is 3604 Next exposure is 0,333 seconds.
2018-10-06T21:20:32 Capturing 0,333-second image...
2018-10-06T21:20:32 Current ADU is 3605 Next exposure is 0,333 seconds.
2018-10-06T21:20:29 Capturing 0,333-second image...
2018-10-06T21:20:29 Current ADU is 3607 Next exposure is 0,333 seconds.
2018-10-06T21:20:27 Capturing 0,333-second image...
2018-10-06T21:20:27 Current ADU is 3605 Next exposure is 0,333 seconds.
2018-10-06T21:20:24 Capturing 0,333-second image...
2018-10-06T21:20:24 Current ADU is 3606 Next exposure is 0,333 seconds.
2018-10-06T21:20:21 Capturing 0,333-second image...
2018-10-06T21:20:21 Current ADU is 3605 Next exposure is 0,333 seconds.
2018-10-06T21:20:19 Capturing 0,333-second image...
2018-10-06T21:20:19 Current ADU is 3603 Next exposure is 0,333 seconds.
2018-10-06T21:20:16 Capturing 0,332-second image...
2018-10-06T21:20:16 Current ADU is 3617 Next exposure is 0,332 seconds.
2018-10-06T21:20:13 Capturing 0,341-second image...
2018-10-06T21:20:13 Current ADU is 3573 Next exposure is 0,341 seconds.
2018-10-06T21:20:10 Capturing 0,317-second image...
2018-10-06T21:20:10 Current ADU is 2919 Next exposure is 0,317 seconds.
2018-10-06T21:20:08 Capturing 0,211-second image...
2018-10-06T21:20:08 Current ADU is 3426 Next exposure is 0,211 seconds.
2018-10-06T21:20:05 Capturing 0,281-second image...
2018-10-06T21:20:05 Current ADU is 3639 Next exposure is 0,281 seconds.
2018-10-06T21:20:02 Capturing 0,375-second image...
2018-10-06T21:20:02 Current ADU is 3649 Next exposure is 0,375 seconds.
2018-10-06T21:19:58 Capturing 0,500-second image...
2018-10-06T21:19:58 Job requires 0,500-second images, has 0/15 frames captured and will be processed.
2018-10-06T21:19:58 Warning: Guide deviation is selected but autoguide process was not started.

There is something wrong !

Best regards.

Robert
iOptron GM28 - ED80 SW - MAK180 SW - ASI183MM PRO -QHY224C - RPI4 4Go + Stellarmate/Nafabox/Astroberry - Focus motor DIY
The following user(s) said Thank You: Jasem Mutlaq
Last edit: 4 years 4 months ago by MORELLI.
4 years 4 months ago #30143

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Please attach the full debug log.
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info
4 years 4 months ago #30163

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Replied by MORELLI on topic Issue with flat capture

It seems if you set up an eposure time greatest then the final right exposure for flat, the process goes wrong.
iOptron GM28 - ED80 SW - MAK180 SW - ASI183MM PRO -QHY224C - RPI4 4Go + Stellarmate/Nafabox/Astroberry - Focus motor DIY
4 years 3 months ago #30177
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