Just add an update to this discussion. We settled with Voyager Custom Array. Not just the dithering, it also automates the synchronization of focusing, rotator, camera control, and some other stuff.
Note: if you are a lazy person this is not for you! Hello folks, I have been doing astrophotography for 3 years now, my current setup is (modified DSLR, star tracker, and L-enhance filter), Bortle 8-9. I started with a normal tripod and a camera then...
Relevant dithering technique for users without guiding systems available.