camera to stick on end of etx 70at

Is there a camera that is good for picking up the best images that can come
out of the limiting etx 70at (meade).

I done research on this a year ago. but things change, and i forget!

There is a company that make cameras for space photography to put on the end
of telescopes, made out of toucams, but i cant remember what they are.
Any ideas?

Stuart