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

Bi-monthly release with minor bug fixes and improvements

Re:Bulb mode issues with my Pentax K-70 and Olympus OM-D E-M5 Mark ii

  • Posts: 19
  • Thank you received: 1
Hello Berylius,

Thank you for working on the OM-D interface! I have had so many issues with my Stellarmate OS lately that I was about to give up on it. I found out my Pi B+ I bought in December was defective which added to my frustrations. After replacing the board and reloading the Stelarmate OS I am now having more success with testing. Tonight I was able to get bulb mode working with my OM-D E-M5. I was also able to get this working after downloading just the Stellarmate updates, so the bulb mode fix seems to be in place in the regular updates. Anyway if you have luck with the Pentax interface, then I will be beyond ecstatic!

Cheers!
Derek Dailey

Equipment:
ZWO ASI071MC Pro
ZWO ASI533MC Pro
Pentax K-70
Celestron C6SE
Astro-Tech AT65
William Optics RedCat 51
Celestron AVX mount

Software:
Stellarmate OS
ASTRO PIXEL PROCESSOR
Deep Sky Stacker
Adobe Photoshop & LightRoom
4 years 11 months ago #37941

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  • Posts: 8
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HEllo,
quite new on this forum but using indi since few years already. I recently changed my Nikon D90 DSLR for an olympus em5 mk2.
i was quiet comfortable when using the nikon gphoto (liveview/video/bulb capture with rs232shutter)buti amreally struggling at having things working with the oly.
i first used the standard gphoto module to try to connect to the oly. the connection looks to be ok but no success in triggering a capture (bulb or sub second))(driver complaining about the shutter device (set to empty)not present.
I also tried to get the preview/liveview/or video but no sucess either.
I then tried the pentax gphoto module. the oly connect (and is detected properly as oly). The exposure is working ok (at least subsecond, not tried bulb). However live video or preview is not working at all.
gphoto is the indi one (with the bulb problem correction).
Currently not at home,but will try toget somedebug logsfromgphoto at least
Thanks forhelpor advices.
Joël
4 years 8 months ago #41140

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Hello,
Finally got it working by doing a full and "clean" update.
However the streaming mode (and the preview too)is not working (indi always claiming viewfinder not found, can't force mirror to go up, failed to start streaming).
I discovered by using gphoto2 cli (and also looking at the indi code..though not a very good programmer) that the command used for preview and streaming in indi is using gphoto_capture_preview. However, the capture preview looks to be really buggy with this DSLR (only able to get one jpg image, after that need to unplug and replug the camera if we want to reuse the command)
However the capture-movie option works ok (that is gphoto_camera_capture with GP_CAPTURE_MOVIE ) (mjpg stream type)
Hpe this help
4 years 8 months ago #41221

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Hi,

I haven't tried the preview function yet, if I have time I'll try to have a look at it .
4 years 8 months ago #41222

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Can you edit the code and use GP_CAPTURE_MOVIE? If it works, we could use it as fallback for cameras such as Olympus.
4 years 8 months ago #41226

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Hi Jasem
Can try to do so...but i need first to install a compile environnement...but let's try.
What about the message about mirror not going up (it is in the viewfinder widget call if my understanding iscorrect should i comment the if l to test?)
Note that it's long time ago i put my hand in code...hope to be not too rusted
Regards

Joël
4 years 8 months ago #41245

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Ok, let me know when you have the dev environment set up. Then you can debug your way through all the issues.
4 years 8 months ago #41256

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HiJAsem

HAve installed all the reuired things for compilation.
i have first verified that the original recompiled was working fine. Everything went ok
However things are more complex since gp_capture and gp_capture_preview do not take the same args.
gp_capture ask for a path while gp_capture_preview ask for a file.
So things are more complex here and i feel unable to dig into (my feeling is it requires a "deep" mod of the code)
However the good news is that, getting back to gp_capture_preview but forcing returning GP_OK in the gphoto_start_preview and gphoto_stop_preview i am able to capture a SER file full of images...
Still have to try the direct stremaing in kstars..but i think it should work ok.
-> Work ok.
this is quick and dirty. to make it cleaner i think a test on manufacturer should be done in start and stop preview
REgards
JoËl
Last edit: 4 years 8 months ago by joel collet.
4 years 8 months ago #41264

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Hi all, Jasem,

I attached the modified file with test on brand for the viewfinder.
I am able to capture up to 1280x960 but full hd (16/9)should be doable, though have not been able to get it (will cut top and bottom of he image)

File Attachment:

File Name: gphoto_driver.txt
File Size:82 KB
4 years 8 months ago #41268
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so the only changes is in gphoto_start_preview and gphoto_stop_preview which is to return OK if Olympus was detected?
4 years 8 months ago #41368

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Yes. I have done the test on olympus in start and stop preview, but maybe it is not the most logical "place". And maybe the test on olympus only is too "restrictive".
Actually, since the camera do not have mirror to be locked it do not have the corresponding widget in gphoto . hence gphoto do not find it. but the current (without this mod) gphoto_driver in indi check for this viewfinder widget (and need it) to work properly. It may be also the case for other 4/3rd mirrorless DSLR (pentax/lumix) dunno.

Joël
4 years 8 months ago #41381

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ok the INDI nightly should have it now, so please check if at least that's working.
The following user(s) said Thank You: joel collet
4 years 8 months ago #41391

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