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  #1  
Old 15-10-2017, 03:39 PM
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trent_julie
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C9.25 Reducer and corrector

Hello,
I am looking to purchase one of these to flatten my c9.25 for Astro imaging. Has anyone got any experience with these? Or know of something better again?

https://optcorp.com/products/asa-2-i...orrector-0-77x
Cheers,

Trent

Last edited by trent_julie; 15-10-2017 at 03:50 PM. Reason: Updated with link
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  #2  
Old 15-10-2017, 03:47 PM
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Merlin66 (Ken)
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Trent,
I assume your C925 is not one of the new HD models....
That being the case it's the Celestron x0.63 reducer you're looking for.
There are more expensive options like the Optec NextGen reducers
http://www.optecinc.com/astronomy/ca...en/nextgen.htm

(I used the x0.5 version for a while - excellent performer.)
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  #3  
Old 15-10-2017, 03:51 PM
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Thank you. Sorry just added the link

https://optcorp.com/products/asa-2-i...orrector-0-77x

I wasn’t sure if the x0.63 reducer allowed for a flat field too
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  #4  
Old 15-10-2017, 04:16 PM
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Merlin66 (Ken)
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The Celestron x0.63 reducer is "claimed" to be a flattener/ reducer - but I'd let the more experienced users comment.
(I only use mine on axis - to focus the target star image on the spectroscope slit gap)

Can't comment on the ASA reducer - no experience.
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