Hi everyone,
I would be grateful for any advice and comments from owners of the RST-300 mount with regard to astrophotography. It's been around for 2 or 3 years now, so hopefully there is more experience regarding its AP capabilities. I have an RST-135 which I've used for several years as a lightweight portable mount for AP on trips to the desert. I've been pretty happy with the RST-135 for guided AP often going up to 300sec subs and haven't really been troubled by the inherent periodic error. I would be using the RST-300 with my AP Starfire 300 and possibly a scope up to around a 9.25 Edge HD in the future.
How does the RST-300 perform for long exposures?
Do you find the periodic error a big problem?
What overall guiding error do you get?
Any overall comments/experience and recommendations would be gratefully received.