Celestron f/6.3 Reducer/Corrector

Celestron f6.3 Reducer/Corrector Lens

Versatile Imaging & Visual Accessory for Schmidt-Cassegrain Telescopes

Transform your standard Schmidt-Cassegrain into a dual-purpose powerhouse with the Celestron f/6.3 Reducer/Corrector. Whether you're expanding your field of view for deep-sky visual observation or reducing exposure times in astrophotography, this precision lens offers exceptional value and performance.

Key Features

• Two Scopes in One
  Convert your long focal length telescope into a fast, wide-field instrument—perfect for viewing expansive star fields and capturing faint deep-sky objects.

• Reduces Focal Ratio by 37%
  Decreases f/10 to f/6.3 or f/11 to f/7, effectively shortening exposure times and widening the field of view for both visual and photographic use.

• Multi-Purpose Functionality
  Ideal for visual astronomy, astrophotography, and even terrestrial digiscoping in low-light conditions.

Optical Performance

• Fully Multi-Coated Optics
  Ensures high light transmission and consistent illumination across the field with reduced vignetting and superior contrast.

• Field Correction
  Partially corrects inherent field curvature in standard Schmidt-Cassegrain designs, enhancing sharpness across the image—especially noticeable during high-power viewing or imaging.

Mechanical Design

• Machined Aluminium Housing
  Precision CNC-machined, black anodised aluminium body offers durability and resistance to wear.

• Internal Glare Control
  Blackened and glare-threaded internal surfaces suppress stray light and maximise image contrast.

• Knurled Grip
  Provides a secure, tactile surface for quick attachment and removal from your telescope’s rear cell.

Easy Integration

Simply thread the Reducer/Corrector onto the rear cell of your SCT (or onto the reducer plate of larger models like the C11 and C14). Compatible with a wide range of accessories including:

• Celestron T-Adapters

• 1.25" Visual Backs

• Star Diagonals

• Off-Axis Guiders

Compatibility

Compatible with:

• C5 (StarSense Explorer, Astro Fi, NexStar SE, Advanced VX)

• C6

• C8

• C9.25

• C11

• C14

Not compatible with:

• EdgeHD Optical Tubes

• Maksutov-Cassegrains

• Refractor Telescopes

• Newtonian Reflectors

Included

• Reducer/Corrector Lens

• Front and Rear Dust Covers

Summary

• Reduces focal length and exposure time

• Improves wide-field visual and photographic performance

• Precision optics with multi-coatings and field correction

• Durable, glare-resistant mechanical design

• Broad compatibility across standard Celestron SCTs

Whether you're after larger views of extended objects or more efficient imaging sessions, the Celestron f/6.3 Reducer/Corrector is a simple yet powerful upgrade for any Schmidt-Cassegrain user.