wow GOOD JOB!
the possibility to talk with the camera Firmware via USB or Remote would be great.
Im thinking about the IR port or the Wireless interface in some Brands.
Idea 1
It sould be possible to access the shutter, appartue or any-settings in some canon DSLRs with a modification of the Magic Lantern Firmware.
Its open source too.
mybeee this one:
Idea 2 is to put a USB-Sniffer between a Camera and A computer with tethered Software like Lightroom and get the code.
Maybe its crypted with some Security algorytm like Timestamps to protect it from Manufactures for 3.Party products...
you can bring your slider to the next level If its possible .
Just some daydreamings...
I Dont know... lets see... lets try....