Hi
Do today's gphoto update address this error? I've an eclipse party planned but maybe able to test if it would be useful...
Cheers,
Steve

[2018-07-26T22:29:48.697 CEST INFO ][ org.kde.kstars.indi] - Canon DSLR EOS 700D : "[ERROR] Exposure failed to save image... Unspecified error "
[2018-07-26T22:29:48.698 CEST INFO ][ org.kde.kstars.ekos.align] - "Restarting capture attempt #2"
[2018-07-26T22:29:48.709 CEST INFO ][ org.kde.kstars.ekos.align] - "Capturing image..."
[2018-07-26T22:29:48.712 CEST INFO ][ org.kde.kstars.ekos.align] - "Capture error! Aborting..."
[2018-07-26T22:29:48.713 CEST INFO ][ org.kde.kstars.ekos.align] - "Capture aborted."
[2018-07-26T22:29:48.753 CEST INFO ][ org.kde.kstars.indi] - Canon DSLR EOS 700D : "[INFO] Starting 4 seconds exposure. "

Not sure what may have caused this, but I updated all KStars/INDI packages on my raspberry pi 3 tonight and then had a very successful imaging session during the lunar eclipse with my 700D. In cases like that for me usually shutting down Ekos and then KStars, disconnecting the camera, switching it off and back on and then reconnect and restart Ekos helps.

Hi. OK, thanks.
Did you update from the git repository?

No, I use the ppa for both kstars-bleeding and libgphoto2.

Hi. OK, thanks.
I think the git becomes the bleeding after the nightly build. I'll pull it and build it anyway hoping it will amount to the same thing.

Do you also build libgphoto2 yourself? Or are you using the version that comes with your OS?

Yes. We try to help by testing new stuff as it arrives..

I made a change to GPhoto to detect duplicate models and handle them, but that's pretty much all the change.

Alacant, did you ever get to the bottom of this and solve it? I'm having exactly the same issue, with the same camera.

Constant errors of "[ERROR] Exposure failed to save image... Unspecified error" and having to make a second attempt. It does sometimes work (about 50% of the time).

I found this in github for a Sony camera:

github.com/indilib/indi/issues/251

So will try turning LENR off tonight. Also, I see there is a delay option to put between taking frames so I may see if that has any benefit.

Hi. Yes. The latest gphoto has an option to use bulb for all exposure lengths rather than those built into the camera. That fixes it.
HTH.

Cheers!

Is the the latest libgphoto, or indi-gphoto? Guessing the latter, which I think means it won't be in the compiled raspberry pi deb packages.

Hi. indi-gphoto. Sorry I'm not familiar with the rpi but it's easy enough to build on Ubuntu.
With so many improvements and enhancements going on, I found it easier to go with the nightly build ppa.
HTH and good luck.