Hi,
I have a Canon EOS camera and have used APT a couple of years now. There is a free version and a paid version. I have the paid version, not very expensive.
You can read about it here:
http://www.ideiki.com/astro/
If you are on the move to buy a new program, test the free vesion of APT first and see if you like it.
Here you can se how I control the focus motor with it:
http://astrofriend.eu/astronomy/proj...us.html#part03
Lars from Sweden