[thxbb12]

I'd take a different approach. Instead of using a DSLR or ML camera, I'd go for an embedded system with a small programmable camera, such as a RPI + PI camera board v2.
You can find many tutorials on the subject ranging from beginner level to more adavanced here: https://learn.adafruit.com/products/3099/guides
Perfect for learning, hacking, much cheaper and probably more flexible than Canon or Nikon's SDK.