conjectured on focusing

Gilles sent me a note.

You did a super presentation on DSLR and focusing.

In your research have you investigated using the DSLR on-board computer to auto-focus?  Since the DSLR can drive the motor in the lens to adjust the focus could it drive a micro-focuser on a telescope attached to the DSLR?

I do not have a DSLR but if there is some hope I may get one.  Focusing is really challenging.

Indeed. Thanked him for the accolade. And shared I had not considered that per se. But I wondered if it might be possible, perhaps with an adapter, given how the Fotodiox M42 adapters work with my old lenses...