C8 Reducer Correktor vs Starizona SCT Corrector IV

2 replies174 views
Rob Kiefer avatar
The Starizona SCT Corrector IV - 0.63 Reducer Coma Corrector is advertised as the best reducer / coma corrector on the market. Does anyone have experience with this corrector in comparison to the standard C8 Celestron corrector (used on the C8, not EdgeHD)? Using the Starizona corrector, will the coma be corrected “close” to the EdgeHD (up to APS-C Sensor)?
Thanks, Rob
Well written Engaging
Benny Colyn avatar
I have an older model (SCT Corrector II) and used to have a "stock" reducer/corrector for my C9.25. The difference is night and day.

Is it up to EdgeHD levels? Not sure, I think the EdgeHD still outperforms it, but it is closer to the EdgeHD than the vanilla reducer for sure.
Rob Kiefer avatar
Benny Colyn:
I have an older model (SCT Corrector II) and used to have a "stock" reducer/corrector for my C9.25. The difference is night and day.

Is it up to EdgeHD levels? Not sure, I think the EdgeHD still outperforms it, but it is closer to the EdgeHD than the vanilla reducer for sure.

Thanks a lot. Yes, I thought that my comment "close to HD" would push it...
Related discussions
Starizona SCT Corrector IV - 0.63X Reducer / Coma Corrector (Backspace requierments)?
SO I have an older C8 and I was encouraged to invest in the Starizonia .63 reducer. Info I found was to establish a back space of 90.3 mm "but at 90.3", the telescope does not focaus clearly. The ASIair can't establish the scopes focal ...
Directly addresses Starizona SCT Corrector IV backspace requirements and C8 compatibility.
Dec 22, 2024
Gear advice
Hello, Please feel free to let me know if this topic is in the wrong area… but I have the 9.25" EdgeHD. I have been using it for a few months now, primarily for visual work and just learning the scope and mount. In the time that I have had...
Discusses EdgeHD and gear selection relevant to corrector comparison question.
Dec 16, 2024