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0.8X reducer/flattener for William Optics ZenithStar 61II

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#1 Spastroof

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Posted 15 September 2021 - 07:14 AM

Hi, currently I'm using the William Optics ZenithStar 61II with 1x field flattener (non-adjustable) with ASI533MC PRO. I need to make my FOV a little wider to fit some of the targets, such as, Andromeda, Heart & Soul. What reducer/flattener works well with the Z61? I read some bad reviews about the William Optics one so was wondering if there is a better one?



#2 qswat72

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Posted 15 September 2021 - 08:54 AM

I use the Astro-Tech reducer with my AT60ED. I think it works pretty good.
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#3 OldManSky

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Posted 15 September 2021 - 09:47 AM

I use the Astro-Tech reducer with my AT60ED. I think it works pretty good.

I did the same with my ZS61 (1).  

Worked great.

 

https://www.astronom...ical-tubes.html

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Edited by OldManSky, 15 September 2021 - 09:48 AM.

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#4 Spastroof

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Posted 15 September 2021 - 11:17 AM

I use the Astro-Tech reducer with my AT60ED. I think it works pretty good.

 

 

I did the same with my ZS61 (1).  

Worked great.

 

https://www.astronom...ical-tubes.html

 

Thank you both! Is it possible to attach a 2" filter to this reducer flattener or I have to get filter drawer? 

 

Also, what is the back focus of this reducer flattener? I'll be using the ASI533MC PRO.

 

Edit: just checked the website and yes I can attach a 2" and the back focus is 55mm which is I believe same as my current William Optics flattener :)


Edited by Spastroof, 15 September 2021 - 11:20 AM.


#5 OldManSky

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Posted 15 September 2021 - 11:31 AM

Yep.  You can install a 2"/48mm filter inside the reducer.


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