Celestron 0.7xReducer Lens for EdgeHD 1400 OTA

BH #CER7XE1400 • MFR #94240
Celestron 0.7xReducer Lens for EdgeHD 1400 OTA
Key Features
  • Designed to Maintain Flat Field Images
  • Five-Element Lanthanum ED Glass Lens
  • Anti-Reflection Fully Multicoated Optics
  • 0.7x Compression Factor
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The Celestron 0.7x Reducer Lens features a custom 5-element optical design and is engineered to maintain the flat-field performance of the EdgeHD 1400 aplanatic Schmidt optical tube assembly (OTA). This reducer lens provides a substantial 5.75" back focus to accommodate an assortment of imaging accessories. It offers high index optical elements, including extra low dispersion, Lanthanum elements, which provide high contrast viewing while minimizing chromatic aberration. All air-to-glass surfaces are treated with multiple layers of anti-reflection coatings for maximum light transmission and color correction, and the interior of the housing has blackened edges to minimize internal reflection and further enhance image contrast.
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Celestron Edge HD Overview

  • 1Description
  • 2Performance
  • 3Glass
  • 4Full Frame Design
  • 5Mechanical Design

The Celestron 0.7x Reducer Lens features a custom 5-element optical design and is engineered to maintain the flat-field performance of the EdgeHD 1400 aplanatic Schmidt optical tube assembly (OTA). This reducer lens provides a substantial 5.75" back focus to accommodate an assortment of imaging accessories. It offers high index optical elements, including extra low dispersion, Lanthanum elements, which provide high contrast viewing while minimizing chromatic aberration. All air-to-glass surfaces are treated with multiple layers of anti-reflection coatings for maximum light transmission and color correction, and the interior of the housing has blackened edges to minimize internal reflection and further enhance image contrast.

The reducer lens features large-diameter lens elements and up to 60mm clear aperture, which ensure that the image circle remains at a generous 42mm for use with large CCD sensors. The mechanical design incorporates a computer-assisted CNC machined aluminum housing for precise spacing and alignment of optical elements and threaded metal covers on the lens assembly to protect your lens from dust and scratches.

Performance

  • 5-element optical layout designed specifically for the EdgeHD 14" Optical Tube Assembly to maintain its flat-field performance
  • The EdgeHD 0.7x lens provides generous back focus to accommodate additional accessories and a wide variety of cameras. Also allows use of existing EdgeHD T-adapters and other Celestron imaging accessories (sold separately)
  • Makes your EdgeHD 1400 Optical Tube Assembly one full F-Stop faster than f/11, reducing your exposure time by one-half to capture the same brightness of the object
  • Increase the field of view by 43%, which is better for capturing wide field images of larger galaxies and nebulae

Glass

  • The EdgeHD Reducer Lens uses rare earth Lanthanum glass elements for clear, high contrast viewing while minimizing chromatic aberration
  • All air-to-glass surfaces have multiple layers of coating for maximum light transmission and color correction
  • All lens elements have blackened edges to minimize internal reflection and maximize contrast

Full Frame Design

  • Threads directly onto the 3.25" threads of the EdgeHD Optical Tube, which reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders
  • 60mm clear aperture lens optimized for a 42mm image circle for use with large CCD sensors

Mechanical Design

  • Computer-assisted CNC machined aluminum housing for precise spacing and alignment of optical elements
  • Threaded metal covers for both ends of the lens assembly to protect your lens from unwanted dust and scratches
UPC: 050234942409

Celestron Edge HD Specs

Design5-element
Compression Factor0.7x
Back FocusOptimal: 5.7" / 14.6 cm
Weight3.25 lb / 1.5 kg
Packaging Info
Package Weight3.79 lb
Box Dimensions (LxWxH)5.95 x 5.9 x 4.9"
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Will the 0.7 Edge HD reducer lens work on the 12" ...

Will the 0.7 Edge HD reducer lens work on the 12" Meade LX850? It to is designed as field flat, but is at F8
Asked by: David
Unfortunately no, the Celestron reducers are not matched to other brands of telescopes. You can use this Meade reducer instead: https://bhpho.to/2XXTSdF
Answered by: Dan
Date published: 2019-07-18

Will the Celestron 0.7x edge HD reducer work on ...

Will the Celestron 0.7x edge HD reducer work on the Meade LX850 12" F8 scope? It is designed to be field flat.
Asked by: David
Hello David, thank you for your inquiry. Each .7x EdgeHD Reducer Lens was designed for their own respective EdgeHD optical system (8, 9.25, 11, and 14). The EdgeHD Reducer Lens was not designed to be optimized with any other optical system.
Answered by: Telescope
Date published: 2019-05-16

question

Does Celestron make a reducer lens for the Edge HD 9.25? If not why not and where can i get one that fits?
Asked by: Paul K.
Thank you Paul for your question. Celestron does not currently have a reducer for the 9.25 EdgeHD models. This has been a tough subject for some time. The 9.25 is a particularly challenging telescope for the design of a focal reducer. Celestron is not going to release a reducer until its right. Our team is determined to get this right before putting a sub-par product out into the market. For reducing the EdgeHD design, we recommend going with the 8, 11 or 14 as we have perfect reducer options for these telescopes.
Answered by: Celestron Celestron Expert
Date published: 2018-08-28
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