Hi again, On Tue, Jun 4, 2013 at 6:36 AM, Jehan Pagès <jehan.marmott...@gmail.com> wrote: > Hi, > > On Tue, Jun 4, 2013 at 5:57 AM, Daniel P. Berrange <d...@berrange.com> wrote: >> On Tue, Jun 04, 2013 at 05:36:16AM +0900, Jehan Pagès wrote: >>> Hello, >>> >>> I just got a camera canon EOS 50D. Well I wanted to try and control it >>> with entangle. Especially as the supported camera list says this model >>> is production-ready. >>> I used entangle 0.5.1, compiled from source. No problem there. I got >>> the software to successfully recognize my camera. And I can take >>> shots. But when I click the preview button, some read grid appears >>> over the current displayed image for a very short time, then I get a >>> popup saying: >>> " >>> Operation: Preview >>> >>> Unable to capture preview: (null) >>> " >>> >>> Any idea what could be the problem? >> >> Hmm, an unhelpful error message. Can you launch entangle with >> >> entangle --debug-gphoto --debug-entangle 2>&1 | tee entangle.log >> >> try to activate live view, and then exit after you see the error. >> Then upload the log file somewhere I can see it, or attach to an >> email (compress it if it is large)
Well I found the problem. I don't know whether that's what you meant by "activate live view", but I have actually to activate it *in the camera* first. On Canon, there is a liveview menu item where you can activate or deactivate using the screen as viewfinder (otherwise you only use the normal viewfinder). If this is not activated first in the camera, it looks like entangle can't get the preview either. I would still say there are things to improve then: either you find a way to activate the feature from entangle/gphoto (after all, entangle is a software to control the camera. You can take photos and all. Can't it also activate features temporarily?), or at least for now, show a nicer error message. Something like "entangle was unable to get a preview from your camera. Perhaps there is a liveview option to activate in the camera menu?". That's it! At least that's not a material issue, so that's a good point. :-) Jehan > Thanks for this quick answer. > Attached is the log. Not that big (400k), so I did not compress it. > Hope it will help. > > Also just for information, it can't be a material problem, right? > Because I just bought it as second hand. It looks ok and working. But > if there was any kind of fishy broken stuff going on with the camera, > I'd like to know soon to tell the previous owner and get refunded. :-p > > Thanks again! > > Jehan > >> Daniel >> -- >> |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| >> |: http://libvirt.org -o- http://virt-manager.org :| >> |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| >> |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| _______________________________________________ Entangle-devel mailing list Entangle-devel@gna.org https://mail.gna.org/listinfo/entangle-devel
