Celestron factor 0.7x focal reducer for Edge HD 1100 and 1400

Celestron's new EdgeHD focal reducer integrates a specific 5-element optical design developed to maintain the flat-field performance of the renowned EdgeHD optical system. Unlike classic optical reducers, this model offers a wide focal plane distance to accommodate various imaging accessories.

The EdgeHD focal reducers feature high index optical elements, including extra low dispersion, exotic Lanthanum elements, all to provide high contrast and chromatic aberration free images. All optical surfaces are coated with multilayers that increase light transmission and color correction, and their contours are darkened to avoid internal reflections and increase contrast. The wide diameter of these lenses, up to 60mm, guarantee a 42mm image circle, very useful for working with high-amplitude CCD sensors.

The mechanical areas are manufactured with computerized numerical control machines, which ensure the best alignment and spacing of the lenses.

With the Fastar option available for all EdgeHD models, along with the 0.7x focal reducer, your telescope will become the most comprehensive image capture system in its price range.

Characteristics:

• The 0.7x focal reducer for EdgeHD makes an EdgeHD telescope have a brighter iris point than f / 10 of / 11, cutting exposure time in half to capture the same brightness from an object
  
• 5-element optical design
  
• Preserves similar flat-field performance as the original EdgeHD optical system
  
• Increases field of view by 43%, ideal for capturing large fields of view
  
• Threads directly into the back bracket of the 82.55mm 11 ″ and 14 "EdgeHD tube which reduces the vignetting effect and enables the use of large CCD sensors and off-axis guides
  
• Maintains the same focal plane distance as available at f / 10 and f / 11 allowing adaptation of multiple optical accessories and cameras
  
• Weight: 1.47kg
  
• Focal plane: 146mm
  

Benefits

• 5-element optical design
  
• Identical focal plane distance with f / 10
  
• Halving of equivalent exposure time
  
• 43% increase in field of vision
  

Glass

• Lanthanum glass elements
  
• Fully Multi-Treated Optical Elements
  
• Darkened edges
  

One-piece design

• Direct adaptation in the rear support of the tube of 82.55mm Ø
  
• Open 60mm aperture optimized to deliver 42mm images with large CCD sensors
  

Mechanical design

• Aluminum bracket made with computerized numerical control machines
  
• Metal protection caps with threads corresponding versatility
  

Versatility

• Enables the use of EdgeHD optics af / 10, f / 7 and f / 2 (Fastar)