====== Tested Cameras ======
<color darkorange>Jun 2017</color>
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So far I have tested four DSLRs (all Canon) and have had different results, so lets look at them to see what I could do (or could not wah!)
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It seems the problems with the <color #ed1c24>capture-download</color> are to do with shutter speed, if you have a longer exposure (say 2 seconds) <color #22b14c>gphoto2</color> times out. If you are using 1/125, it's fine.
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==== Canon EOS-M ====
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{{:eos-m1.jpg?250|}}
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This is the original Canon EOS-M model.
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<file>
gphoto2 --auto-detect


Model                          Port
----------------------------------------------------------
Canon EOS M                    usb:001,027
</file>
So yes, we can auto detect the camera.
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<file>
gphoto2 --capture-image


*** Error ***
Sorry, your camera does not support generic capture
ERROR: Could not trigger capture.
*** Error (-6: 'Unsupported operation') ***

For debugging messages, please use the --debug option.
Debugging messages may help finding a solution to your problem.
If you intend to send any error or debug messages to the gphoto
developer mailing list <gphoto-devel@lists.sourceforge.net>, please run
gphoto2 as follows:

    env LANG=C gphoto2 --debug --debug-logfile=my-logfile.txt --trigger-capture

Please make sure there is sufficient quoting around the arguments.
</file>
So we are unable to capture files from gphoto using the EOS-M
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<file>
gphoto2 --get-all-files

Yes
</file>
Yes, we were able to pull all of the files from the EOS-M, so we can use a backup solution for this camera, but no intervalometer functions.
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==== Canon EOS 550D ====
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{{:canon_eos_550d.jpg?250|}}
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Now for my trusty Canon EOS 550D, a camera I really love, although it's getting a little old now.
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<file>
gphoto2 --auto-detect

Model                          Port
----------------------------------------------------------
Canon EOS 550D                 usb:001,030
</file>
Camera auto-detected okay.
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<file>
gphoto2 --capture-image
</file>
Yes, this worked fine.
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<file>
gphoto2 --capture-image-and-download
</file>
Hmm, worked initially, then stopped working. Seemed to work in Manual, but no other modes. Once it stopped working I never got it going again.
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<file>
gphoto2 --get-all-files
</file>
Yes, this worked without any issues.
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==== Canon EOS 700D ====
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{{:700d.jpeg?250|}}
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Now for the newer Canon EOS 700D, lets see if a newer model supports everything.
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<file>
<file>
gphoto2 --auto-detect

Model                          Port
----------------------------------------------------------
Canon EOS 700D                 usb:001,007
</file>
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<file>
gphoto2 --capture-image
</file>
Yes, no problems.
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<file>
gphoto2 --capture-image-and-download
</file>
Again, interminttant, Would work for a while, then stop.
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<file>
gphoto2 --get-all-files
</file>
Yes, no problem with file transfer.
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==== Canon EOS 5DMK2 ====
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{{:5dmk2.jpeg?250|}}
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Now for the Full Frame Canon EOS 5DMK2, Remember, at time of writing this is a 9 year old DSLR.
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<file>
gphoto2 --auto-detect

Model                          Port
----------------------------------------------------------
Canon EOS 5D Mark II           usb:001,011
</file>
Yes, auto-detect works fine.
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<file>
gphoto2 --capture-image
</file>
No.
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<file>
gphoto2 --capture-image-and-download
</file>
No.
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<file>
gphoto2 --get-all-files
</file>
Yes, works without any issues.
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