EOS 650D/T4i "Camera error"

[v002]

EOS 650D/T4i "Camera error"

[bangnoise]

All versions of the Canon SDK since 2.10 have been extremely unstable. If you have access to the SDK, you are free to build your own version.

[VisualBoy]

Good news: I've succesfully build my own version with ESDK 2.13.2 and now it works flawlessly!

Download link: https://www.dropbox.com/s/qw5efegxg1mzn6c/Camera.Live.5.1-OSX-10.8.zip (updated)

[THTM]

VisualBoy, I am using a T4i and also get the 'Camera Error' message. The camera either doesn't show up at all in the list. Or with some finagling it shows up, but when selected I get the error message.

I found your post here and downloaded your ZIP file, but it crashes every time I start. Could this be an OS issue? I'm on a Mac using OS 10.9. Thanks.

[pizthewiz]

@VisualBoy's app build links a dynamic library that isn't bundled into the application or part of a default OS install, so the app dies after it fails to load it: Library not loaded: /opt/libjpeg-turbo/lib/libturbojpeg.0.dylib. He could either rebuild the app bundling the dependency or linking to a static lib, or you could build and install libjpeg-turbo into /opt/ and see if that gets his app build up and running.

@bangnoise - the instability you have run into, is that just the crash EdsCameraRef release or was there other stuff you've run into as well?

[THTM]

I found another alternative that is using the updated SDK, and it works with my camera. So I'm good.

[bangnoise]

@pizthewiz I'm not sure what crash you're seeing, but the big issue is an intermittent crash when a camera is powered off during Live View, which occurs outside of any of my calls into the SDK. Additionally the callback for camera state events is no longer called unless a session is open to the camera, making it impossible to track presence for multiple cameras. There may be others... these two are enough to put me off.

[VisualBoy]

@THTM Actually I've built my own version for OSX 10.8 ML
@pizthewiz I found that included lib "libturbojpeg.dylib" is only an alias for "libturbojpeg.0.dylib" that is not included.

I've re-built a newer version with all static lib:

You can download new version here: https://www.dropbox.com/s/qw5efegxg1mzn6c/Camera.Live.5.1-OSX-10.8.zip

[bangnoise]

@VisualBoy I build libjpegturbo myself rather than use their download, so obviously make sure you adapt the project if your distribution has different binaries (sounds like you now have).

[pizthewiz]

Just noting that the EDSDK v2.15 still doesn't send kEdsStateEvent_Shutdown to the event handler unless a session is opened - every EDSDK release, I try it out hoping the behavior went back to that in v2.10 and earlier, and each time I end up sending them another bug report 😉

[julienrobert]

anyone succeeded to make it works with t4i?

[SlexAxton]

I can successfully get everything linked and built with v2.15 on 10.10.4 Yosemite, but I get the 'camera error' message.

@VisualBoy or @pizthewiz - is there something specific that you messed with to get things running with the new sdks? Happy to push a fix if I can find one.

Edit: I've got a 5D mk III

[SlexAxton]

Alternatively, if someone could point me towards the place that error message comes from, I may be able to dig in. Not a ton of native chops though :/