Burst mode and image resolution on Nikon D7200

Hello gphoto users,

I've been experimenting with using gphoto to control a tethered dSLR (the
Nikon D7200) via a Raspberry Pi 3. I've got the first part working. So I
can now take single images and download it to my Pi for further
processing. (can repeat the single image capture and download event).

Now I want to add a second option where I take a burst of images and then
merge them into a single animated Gif. This is where some of my fun comes
in. I can make it happen if I don't  change some related internal settings.
Full size images (8 max) can be taken, but I can't  change resolution
without causing the camera to fail (can't access PTP, or long delay 1+min,
or even total freeze requiring power off and back on) after command

First since since not all cameras support all functions, has anyone manage
to get something similar to work? (I know I could manually mage settings
updates, but I want to be able to switch between these two images types and
not require a dedicated camera for each one)

works takes images and downloads, but only gives 8 images
> gphoto2 --set-config=burstnumber=10  —capture-image --recurse
--list-files --get-all-files

Fails
> gphoto2 --set-config=burstnumber=10  --set-config=imagequality=1
—capture-image --recurse --list-files --get-all-files


Fails
> gphoto2 --set-config=burstnumber=10  --set-config=imagequality=1
--set-config=5003=2 —capture-image --recurse --list-files --get-all-files

gives errors like and sometimes totally freezes camera

*** Error ***
> PTP I/O error
> *** Error (-1: 'Unspecified error') ***


Any ideas or working command example for Burst (lower resolution)
 appreciated.

Thanks,
Paul

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