Rainbow RST-300 mount for astrophotography - Mounts - Cloudy Nights

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Rainbow RST-300 mount for astrophotography

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#1 life on mars

life on mars

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Posted 29 April 2024 - 08:22 AM

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.



#2 slavicek

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Posted 29 April 2024 - 04:55 PM

I use RST-300 for visual so I will not help much but sometimes, while observing, it moves the object bit up and down. That's fine for observing but it would be disaster for photo tracking. I use it in Alt-Az mode. It would handle 9.25 Edge no problem.




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