The Celestron focal reducer and field corrector lens accessory works with all Celestron C5, C8, C9-1/4, C11 and C14 SCT telescopes. This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality. The Celestron reducer/corrector is f/6.3 for C5, C8, C9 and C11 telescopes and f/7 for the C14 telescope. The Celestron 6.3 focal reducer is not compatible with either the Celestron HD and Meade ACF scopes and OTA The Celestron focal reducer and field corrector offers wide fields of view with any Schmidt-Cassegrain telescope. Used for astrophotography, it reduces exposure time by a factor of 3. The Celestron focal reducer uses fully multicoated optics for the best image quality and light transmission.
Celestron f6.3 Focal Reducer/Corrector
Celestron Product Number: 94175
- Additional Information
SKU CE-94175 UPC Code 050234941754 Manufacturer Celestron Barrel Size Thread-on Warranty 2 Year Warranty
Customer Reviews 1 item(s)
- A good investment for your SCT
Is amazing for visual.
For imaging be carefuly with the vigneting in FF and APS sensors.
1= Houston, We Have a Problem & 5= It's Out of This World
- Included Items
- Celestron f6.3 Focal Reducer/Corrector
- Celestron Accessories One Year Limited Warranty
- Questions & Answers
Product QuestionsQuestion by: Superfx on Feb 3, 2015 8:12:22 AMYou will need an adapter as this reducer will not natively fit. A 2" nosepiece to 2"-24 TPI SCT thread adapter like the JMI JM-ADPT2THREAD adapter or the FLI FL-DT-1 will let this reducer slide into the Click-Lock adapter. On the camera side, you will then need a standard SCT T-adapter like the CE-93633-A and a T-ring for your camera.Answer by: Chris (Admin) on Feb 5, 2015 8:50:09 AMDoes this adapter replace the "Visual Back" on the telescope, or does it attach to the Visual Back or the Star Diagonal eyepiece holder on a Celestron 8" SCT?Question by: Greg1 on Aug 28, 2014 3:03:02 AMQuestion by: RichP on Dec 7, 2014 7:17:41 AMUnfortunately, no. Imaging standards were lower back in the film days when this reducer was created - plus film was more forgiving of off-axis coma than digital - so nowadays the f/6.3 reducer is only considered usable over the field of an APS-C format sensor. Please call me at the store and we can discuss options for larger format field flatteners for this scope.Answer by: Chris (Admin) on Dec 8, 2014 12:39:52 PMQuestion by: Thunder on Apr 6, 2014 4:40:54 PMYes, although the C6 might exhibit a bit more residual field curvature than the 8", so you will want to only use it with cameras with APS-C or smaller sensors. At proper 105mm spacing to the camera sensor, the scope will be at f/6.3 at a focal length of ~945mm.Answer by: Chris (Admin) on Apr 7, 2014 5:14:29 AMWould this work well for a NexStar 8SE for astrophotography with a Canon T5i and an Orion G3 Starshoot Color? An Antares f6.3 focal reducer corrector would be a better choice?
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