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Canon EOS 1000D - all FITS files are completely black in DSS

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1. When you take an image does the Indi viewer show the image as black even when stretched ?
No, the viewer in Indi shows the correct image, as does the Ekos dashboard ("Settings" tab)

2. Double check your frame settings and pixel sizes in Indi settings - I suspect this is the problem
Do you mean these settings?



3. Check your DSS is up todate
It is the current 4.2.3 64bit. I upgraded a few days ago while investigating this issue.

4. If the Indi viewer is showing a non black image then your settings in DSS are wrong
see 1.

5. In your Indi settings what are your Format etc settings set to - screen print always help here :-)
Do you mean the settings above? If not, which settings do you mean exactly? (I'm quite new to Ekos)

>> Plus take note of the colour indicators in Indi Settings - they should be all green - are any RED indicating a problem.
All are green or white

6. Load one of he many FITS viewer's for Windows and see if the image
Yes, I have a FITS viewer and that shows data in the images.

>> DSS is quite able,as you no doubt already know , to handle FITS from Indi - I use it via Astrotoaster all the time and there is no problems - so long as your settings in Indi AND DSS are correct.
Yes, I thought so. This can't be a general problem or my search before posting would have come up with either a solution, or a long list of people reporting issues. ;-) I'm sure this is something on my side (either Ekos or DSS) but I'm not experienced enough to investigate further on my own.
These are the FITS settings in my DSS:
3 years 11 months ago #52016
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indeed. ;-)

there is one .cr2 and one FITS flat frame here:
drive.google.com/open?id=1ewPZLk-cS_v_AYAXcrljm9x9e_LxoS1x
I only changed the file format, all other settings were identical.
3 years 11 months ago #52017

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Thanks for the file. Very helpful ;-)
Good news is that both files contain data. Bad news is that there's no useful data inside because you take very very very shot exposures, much too short (0.0002500 sec).
These are useless as flat frames, but can be used as bias frames.

If you have any light frame I can inspect it for you too ;-)
Last edit: 3 years 11 months ago by Radek Kaczorek.
3 years 11 months ago #52021

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Thanks, I have added one FITS and one CR2 light frame to the same folder.

I'm somewhat surprised by your comment about my flats. It was my understanding that it was best to let the camera choose the exposure when pointing at the flat panel (light source). When I do that, my camera selects 1/4000sec. I then selected that in Ekos.
The next higher exposure setting seems to be 1/100 (0.001sec). When I use that the flats are over exposed. When I open the CR2 flat it looks good to me (if a bit blue-ish), but I'm by no means an expert... ;)
Is my flat panel too bright? It's an old LED TV with the display removed and only the backlight left, which I made remote controllable. It is mounted on the wall in front of the telescope when it's parked.
3 years 11 months ago #52022

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Your pixel size X,Y are wrong - surely they should be 22.2 and 14.8 ??????????
RPI3 Ubuntu 16.04 / AMD desktop Kstars under Ubuntu 16.04 Mounts :azeq6 ,SWAZGoTo

RPI3 Fedora testing out on AMD desktop Fedpra 28 - running kstars 2.9.4 , Indilib 1.7.4 ?????
3 years 11 months ago #52023

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ah, is that supposed to be the sensor size in mm? "Pixel Size" is a bit confusing then...
3 years 11 months ago #52024

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Does that mean it is also wrong for my QHY5?


Here I don't seem to have a way of changing it.
3 years 11 months ago #52026
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Just your FITS produces this in DSS 64 BIT Windows

RPI3 Ubuntu 16.04 / AMD desktop Kstars under Ubuntu 16.04 Mounts :azeq6 ,SWAZGoTo

RPI3 Fedora testing out on AMD desktop Fedpra 28 - running kstars 2.9.4 , Indilib 1.7.4 ?????
3 years 11 months ago #52027
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maybe it accepts both in X & Y - naughty should state unit of measurement as per Pixel Size. I use MM and mine works - maybe a fluke LOL

Plus doesn't Indi get most properties from the drivers except for DSLR as it uses a re-engineered piece of software GPHOTO - might be wrong - await an expert !
RPI3 Ubuntu 16.04 / AMD desktop Kstars under Ubuntu 16.04 Mounts :azeq6 ,SWAZGoTo

RPI3 Fedora testing out on AMD desktop Fedpra 28 - running kstars 2.9.4 , Indilib 1.7.4 ?????
Last edit: 3 years 11 months ago by Clive Stachon.
3 years 11 months ago #52028

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Your light frames are absolutely fine, except they are just underexposed.

3 years 11 months ago #52029
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Re-read devices - DSLR appear to be in micron's in the D600 example shown - so I am confused to what they should be and why mine work !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Anyway your FITS file is OK as Radek say's and my test shows DSS works with your Lights.
RPI3 Ubuntu 16.04 / AMD desktop Kstars under Ubuntu 16.04 Mounts :azeq6 ,SWAZGoTo

RPI3 Fedora testing out on AMD desktop Fedpra 28 - running kstars 2.9.4 , Indilib 1.7.4 ?????
3 years 11 months ago #52032

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OK, so it's just me then. I didn't actually stack them.
What do you get when you just load the light frame in DSS (add to list) and then click on it to see the preview? Does that show data for you? This is where I see it completely black, including the flat.

Yes, they are only 30sec frames. I will ramp up exposure time once I get guiding working.

Thanks for testing this for me, guys! ;)
3 years 11 months ago #52036

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