Celestron f/6.3 Reducer/Corrector
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Celestron f/6.3 Reducer/Corrector

SKU: CNRC MFR: 94175
(24)22 questions, 55 answers
$169.99
$259.95
Save: $89.96 (35%)
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Key Features

  • Capture stunning astrophotography with this Celestron reducer/corrector lens!
  • Optimize your telescope's focal length for wide-field views with this reducer.
  • Achieve sharper images across the field with integrated optical correction tech.
  • Designed specifically for Celestron telescopes, ensuring a seamless fit and function.
  • Reduce exposure times for brighter deep-sky astrophotography images; get yours now!
  • Backed by a 2-year Celestron warranty, guaranteeing satisfaction and peace of mind.
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Questions & Answers

WILLIAM J : Is this focal reducer a 1.25” or a 2” mount?JAMES B : I agree with the answer "It's actually neither ....." I have one. According to the instructions: Remove all accessories from the read cell of your SCT telescope. Thread the Reducer/Corrector Lens onto the rear cell of the telescope. Thread the desired accessory (i.e. Celestron: 1.25" Visual Back-model #93653-A, T-Adapter-model #93633-A, SCT to 2" Adapter-model #93661).LAUREN S : 2" mount with 41mm clear optics.BRIAN W : It's actually neither, although closer to 2". It's specifically an SCT thread. This reducer will screw onto the back of the SCT telescope then provide a male SCT thread to connect any accessories. You will still need an SCT to 2" adapter or an SCT to 1.25" adapter to connect to this reducer.JEFFREY P : 2”
RICHARD M : Who is the manufacturer?  Japan or China?
RION G : Where is this item manufactured? I guess it gets down to the question of quality...

Reviews about this item

Review Summary

2022-02-12T15:50:03

Rated 5 out of 5

Reducer / Corrector f/6.3

Great price,great service and it works as advertised.

GARY A.

2022-01-20T10:42:30

Rated 5 out of 5

Must have for astrophotography

Great tool for astrophotography (with SCT)

Gil B.

2021-11-04T08:28:09

Rated 5 out of 5

Great product for astrophotography

This reducer works as advertised. The quality is great and the fact that it corrects for spherical aberration is a plus when compared to a lens that only reduces. Its like having another high quality eyepiece on the wide end of the spectrum. Gaining one and one-half f-stops reduces exposure times by about 65% so its very beneficial for those who want to do astro-photography.

Allen R.

2021-07-15T11:16:47

Rated 4 out of 5

Worth the price.

Very nice addition to my nexstar 6/se.

JON D.

2021-07-15T08:35:34

Rated 5 out of 5

Great product

Gave a very clear image on my 8? sct and helps correct the backfocus as well.

JOEL P.

2021-05-06T13:43:25

Rated 5 out of 5

Images speak for themselves

Terrific investment. Better than expected results.

Roger C.

2021-02-12T11:53:51

Rated 5 out of 5

Awesome Seller !!!

Awesome Service !!!

JASON L.

2021-02-02T12:15:13

Rated 5 out of 5

Excellent quality.

Made very well and clear flat field of view.

JOE O.

2020-11-20T09:44:48

Rated 5 out of 5

Excelente

Excelente, buen producto

Jorge B.

2020-07-27T17:00:36

Rated 4 out of 5

Great reducer for price

Great for the price point. You get some expected vignetting (can be fixed with flat frames), but great performance.

EVREN B.

2019-02-11T11:12:22

Rated 5 out of 5

Wonderful Accessory

Works perfectly with my Nexstar 6 SE. Especially those times when a wider field of view is desired.

Ralph P.

2017-07-25T15:44:27

Rated 5 out of 5

Great Tool for your Toolkit

Using this mainly for viewing DSO’s and Astrophotography. The reducer helped to make the sky darker and the objects popped out more brightly. The wider field of view is nice to have when star hopping. Use this on a CPC800 and 6SE.

Wayne W.

2017-07-11T09:48:55

Rated 5 out of 5

Must for SCT

I think every SCT must have this focal reducer / corrector. Increase in field of view really helps in star hopping. I strongly recommend this one.

HARIHAR J.

2016-11-11T08:51:29

Rated 5 out of 5

Its like having two telescopes

The f/6.3 Celestron Reducer/Corrector brightened my view of deep sky objects while making the sky appear darker. Objects also appear sharper with a wider field of view. I use the Celestron f/6.3 Reducer for deep sky viewing to brighten my f/10 scope by 30.7% while maintaining the ability to quickly remove it for planetary viewing at higher power. Its like having two telescopes.

Joe V.

2014-05-06T21:00:00

Rated 5 out of 5

Perfect Match Canon T1i+CPC800+Moon

I got the Reducer/Corrector so I can get the entire moon in my Field of View. I use the CPC800 mostly for Deep Space shots with my Hyperstar F2 set up. I wanted the ability to get full lunar shots without having to take two in order to get the whole full moon. Not anymore! This also seals the back of the scope helps the keep the dust out. Canon T1i + CPC800 + Reducer/Corrector = Full Moon!

Leope

2013-07-29T21:00:00

Rated 5 out of 5

Celestron Focal Reducer F/6.3

Using this beats looking for an eyepiece to give the widest field needed with an F/10 telescope. Put this focal reducer on and then use your widest field eyepiece and its there. I use this on my Celestron 9.25" SCT.

Chuck H.

2013-06-24T21:00:00

Rated 5 out of 5

Awesomw Product

It really works well for astrophotography. It reduces exposure time and provides great sharpness on my pictures.

Baltier

2013-02-05T19:00:00

Rated 1 out of 5

Don't waste your money

A telescope is as good as its weakest link. My c-14 optics were figured by Thomas Johnson himself...when I add this accessory, I'm retro-graded back to the days of half and 5/8 wave images and optics. Trust me, after a month it'll be that one item at the bottom of your eyepiece case that just sets there, and you'll occasionally pull it out to show your fellow observers.

jim l.

2012-12-24T19:00:00

Rated 4 out of 5

Best Price Around & Works As Advertised

Using this reducer/corrector is like getting a whole new set of eyepieces! Once you use it, you'll wonder how you ever got along without it.

JOHN T.

2012-07-15T21:00:00

Rated 5 out of 5

Great product. Buy it.

Excellent optics. Much greater field of view on both my 6" and 8" SCT. Pinpoint stars across the field.

PATRICK S.

2012-02-19T19:00:00

Rated 5 out of 5

Good Value

The reducer is built well, a quality product.

Stargazer

2012-02-12T19:00:00

Rated 5 out of 5

Good Price

The price is the best I have found on the net. From what I can tell, its a quality product the build is solid.

Stargazer

2009-08-25T21:00:00

Rated 4 out of 5

works as described

Used to decrease the focal length from 10 to 6.3 on a 9.25 Celestron CAT. Decreased focal length = increased light gathering power and wider field of view.

quickgrayfox

2007-02-11T19:00:00

Rated 5 out of 5

Review of Celestron Reducer / Corrector

If you have a Schmidt Cassegrain telescope, this accessory is a must! It offers wider field views (both viusal and photographic)that allow you to capture large objects such as vast Milky Way spans, Andomeda Galaxy, etc.

Scott

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3 Accessories for Celestron f/6.3 Reducer/Corrector

  • All Accessories (3)
  • Imaging Adapters (1)
  • T-Mounts (2)
Celestron T-Adapter for All Schmidt-Cassegrains Telescopes
Celestron T-Adapter for All Schmidt-Cassegrains Telescopes
$34.95
Recommended
ProOPTIC T-Mount for Pentax K/Autofocus/DSLR Cameras
ProOPTIC T-Mount for Pentax K/Autofocus/DSLR Cameras
$7.69
Recommended
Celestron T-Ring for Nikon
Celestron T-Ring for Nikon
$16.95
Recommended

About Celestron f/6.3.

FEATURED REVIEWS

Perfect Match Canon T1i+CPC800+Moon

By Leope

I got the Reducer/Corrector so I can get the entire moon in my Field of View. I use the CPC800 mostly for Deep Space shots with my Hyperstar F2 set up. I wanted the ability to get full lunar shots without having to take two in order to get the whole full moon. Not anymore! This also seals the back of the scope helps the keep the dust out. Canon T1i + CPC800 + Reducer/Corrector = Full Moon!

Review of Celestron Reducer / Corrector

By Scott

If you have a Schmidt Cassegrain telescope, this accessory is a must! It offers wider field views (both viusal and photographic)that allow you to capture large objects such as vast Milky Way spans, Andomeda Galaxy, etc.

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 for the C14 telescope.

If offers wide fields of view with any Schmidt-Cassegrain telescope. Used for astrophotography, it reduces exposure time 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 resulting loss in contrast. This, added to the inability to utilize longer focal ratios for certain objects, led Celestron to design the four-element, fully multicoated f/6.3 Reducer/Corrector. Results are amazing both visually and photographically.

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

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Key Features

  • Capture stunning astrophotography with this Celestron reducer/corrector lens!
  • Optimize your telescope's focal length for wide-field views with this reducer.
  • Achieve sharper images across the field with integrated optical correction tech.
  • Designed specifically for Celestron telescopes, ensuring a seamless fit and function.
  • Reduce exposure times for brighter deep-sky astrophotography images; get yours now!
  • Backed by a 2-year Celestron warranty, guaranteeing satisfaction and peace of mind.

What's in the box:

  • 2-Year Warranty