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SW Quatro F4 Aplanatic Comma Corrector for NON SW (10", f3.9)Newtonians

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#1 vaticanaddict

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Posted 23 November 2020 - 01:03 AM

Hi guys.
Will the Sky-Watcher Quatro F4 Aplanatic Coma Corrector work with the Orion 10'' f3.9 Astrograph?

Wasn't it designed only for the SW Quatro series Newtonians only?

Thanks,

Eyal

#2 Kevin Thurman

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Posted 23 November 2020 - 01:11 AM

They honestly might just be the same scope. Do you have the ability to test it out?



#3 vaticanaddict

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Posted 23 November 2020 - 02:08 AM

No. Unfortunately I don't have that option.

I hope someone with an Orion 10'' f3.9 Astrograph who uses the SW Coma Corrector could shed some light on this one. 


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#4 cmooney91

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Posted 23 November 2020 - 09:11 AM

Newtonian Coma Correctors are completely interchangeable, as long as you stay within the F ratio limits.

All newts use a parabolic primary mirror. From the coma corrector's point of view it doesn't matter who made the parabola, as long as it is a parabola.

 

The Sky Watcher aplanatic is itself a rebranded "GPU" aplanatic. 

 

I use my SW aplanatic CC with a Bresser 8" F3.9 Newt and it works great. sharp stars to the corners of a 23mm micro 4/3 sensor. 

 

Here is an example of my star corners with the Aplanatic CC + 8" F3.9 + ASI294. That whole album is full of EAA live stacking with the same setup. 


Edited by cmooney91, 23 November 2020 - 09:11 AM.

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