Michael Juliano:
I guess that's my question, at that Focal length, can PHD work fast enough, and will my 50mm guide scope have the resolution to keep the planet centered in the frame?
The more I think about it the more I am doubting that it will work. >_<
I guess if you want to add guiding you can, and it wont hurt. But its probably not going to help much.
Planetary frame rate is so fast and guiding is so slow by comparison, that the dominant aspect for image stability is the frame rate not the mount tracking performance.
if your losing the target quickly due to poor polar alignment, then guiding would have more value, but if you PA is 30 arc seconds or thereabouts drift should not be much of an issue even at longer focal lengths.
