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Celestron f/6.3 Reducer/Corrector

BH #CERC • MFR #94175
53 reviews
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Celestron f/6.3 Reducer/Corrector
Key Features
  • For 5-14" Catadioptric Scopes
  • Widens Field of View
  • Shortens Exposure Times
  • Requires 93633-A Photo Adapter
This combination focal reducer and field corrector lens accessory works with all Celestron C5, C8, C9.25", C11 and C14 telescopes.  This clever accessory makes it possible to have a dual focal ratio instrument without sacrificing image quality.  The Reducer/Corrector is f/6.3 for C5, C8, C9.25" and C11 telescopes and f/7.0 for the C14 telescope.

It offers wide fields of view with any Schmidt-Cassegrain telescope.  Used for astrophotography, it reduces exposure times by a factor of 3.

Celestron doesn't offer a f/6.3 Schmidt-Cassegrain telescope, because the design is impractical-with a large central obstruction and a resulting loss in contrast.

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Celestron 94175 Overview

This combination focal reducer and field corrector lens accessory works with all Celestron C5, C8, C9.25", C11 and C14 telescopes.  This clever accessory makes it possible to have a dual focal ratio instrument without sacrificing image quality.  The Reducer/Corrector is f/6.3 for C5, C8, C9.25" and C11 telescopes and f/7.0 for the C14 telescope.

It offers wide fields of view with any Schmidt-Cassegrain telescope.  Used for astrophotography, it reduces exposure times by a factor of 3.

Celestron doesn't offer a f/6.3 Schmidt-Cassegrain telescope, because the design is impractical-with a large central obstruction and a resulting loss in contrast.

UPC: 050234941754

Celestron 94175 Reviews

Excellent reduceer

By Craig
Rated 4 out of 5
Date: 2024-05-28

I purchased this corrector for my Celestron CPC-1100 telescope. It provides a wider field of view with the same eyepieces.

works with nexstar 127slt with adapter

By Chales
Rated 5 out of 5
Date: 2022-06-22

I bought an adapter for this reducer and put it into the image train of my nexstar 127slt. It's not intended for this scope but works great, reduced the f-stop to ~f7 and focal length to 945mm. Now I can actually take pictures of nebulas without 6 days of data.

See any errors on this page?

Is this a field flattener as well as focal ...

Is this a field flattener as well as focal reducer? Can't use a field flattener w/ my LX200-ACF but, would like a focal reducer.
Asked by: Richard
No, the Celestron f/6.3 Reducer/Corrector is not a field flattener, but it does have some flattening effect. Due to the design, the Reducer/Corrector lens does diminish a small amount of field curvature common to all Schmidt Cassegrain telescopes but does not eliminate it.
Answered by: Yaakov
Date published: 2022-05-15

Will this fit on the Meade lx85 8”?

Will this fit on the Meade lx85 8”?
Asked by: Michael
Yes it will work on the LX85 8"
Answered by: John
Date published: 2025-08-18

Will this work with a Meade LX200 classic 10"?

Will this work with a Meade LX200 classic 10"?
Asked by: Todd
The Celestron f/6.3 Reducer/Corrector is designed to work with Celestron Schmidt-Cassegrain telescopes. We do not guarantee that it will work with competitor's telescopes.
Answered by: Telescope
Date published: 2022-09-06

question

can i purchase from Australia?
Asked by: Anonymous
You may calculate your actual shipping options/order totals by adding the items you want to a shopping cart. It will then list the shipping options, descriptions, ETA's and fees to your location.
Answered by: Heather S.
Date published: 2018-08-27

does this works with Celestron Astromaster 130 ...

does this works with Celestron Astromaster 130 eq?
Asked by: Anonymous
No, the Celestron f/6.3 Reducer/Corrector is not compatible with the AstroMaster 130EQ telescope.
Answered by: Telescope
Date published: 2021-04-27

is this thing gonn change lowest useful ...

is this thing gonn change lowest useful magnification for telescope if you use it(for example cpc1100’s lowest magnification is 40 how much will it change)
Asked by: david
It does not affect the eyepiece directly. It reduces your telescope's focal length (in your case 2800mm) down to 1764mm. So now your 40mm eyepiece drops from 70x to 44x magnification.
Answered by: Dan W
Date published: 2020-10-30

Does this focal reducer works with a Celestron ...

Does this focal reducer works with a Celestron 8SE?
Asked by: Jean
Yes, its 100% compatible.
Answered by: David
Date published: 2021-03-18

will this fit on the celestron 4se ?

will this fit on the celestron 4se ?
Asked by: kevin
I don't believe this is compatible without additional adapters, still trying to get the correct answer on this.
Answered by: Justin
Date published: 2022-05-20
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