Focusing Routine

How is the basic working principle of the myFocuserPro2 and where is the AutoFocus starting point?

The focusing sweet spot is somewhere around step 4150. Start your Autofocus Routine there.

Choose the right focuser!

Be sure to choose the MyFocuserPro2. Sometimes it autoselects the Canon DSLR Focuser, which in this case is non-sensical.