Yeah Hyperstar shortens the focal length so no good for planetary, more like wide field. Not inexpensive either, so not really something if you're just interested in dabbling.
I can recommend a ZWO planetary cam also, I use the ASI224MC which is super sensitive and low noise. I have used it with my 8SE and it works fine. If you're going to try planetary imaging on the SE mount then it's worth taking the time to level and do a good star alignment as that helps the tracking stay on track...once you stick a Barlow in the optical path, any tracking errors become all the more noticeable
