Used Celestron C-5 Optical Tube (Spotter) with Case - UT-11764 - SOLD -

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  • $349.00
  • Regular price $479.00

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  • This is a used telescope in very good condition
  • High grade optical design
  • Great for spotting and astronomy


Used Celestron C-5 Optical Tube (Spotter) with Case - UT-11764 - SOLD -

UT-11764: The optics of the Celestron C5 have long been acknowledged as among the finest small optics available. Even with the ability to use any optics in the world, NASA has still chosen to use C5 optics on Space Shuttle missions because of their performance. Do you deserve anything less than optics that are up to NASA standards? 
For the observer whose observing interests are the entire Universe, the Omni XLT 127 has a lot to offer. It is exceptional for observing within the solar system. Its views of subtle lunar and planetary details are sharp and detailed, bringing the planets to vivid life in the eyepiece. 
It has a sensibly large aperture that makes it surprisingly good for much deep space observing, as well. Binary stars and globular star clusters are well-resolved and vivid, with the contrasting colors of many binary systems showing nicely. Hundreds of nebulas and galaxies are visible, many of them showing significant detail and structure. Optically, this 5” Celestron can keep you happily observing for many years to come.

This Telescope’s Optical System . . .

  • Schmidt-Cassegrain optical tube: 5” aperture (1250mm focal length f/10) aluminum tube, 11” long, weighing only 6.5 lbs. One-knob quick-release dovetail attachment to mount for fast assembly in the field. Guaranteed diffraction-limited optical performance, free from the chromatic aberration visible in achromatic refractors and the coma visible in fast focal ratio reflectors. Fully collimatable for optimum sharpness. Rear cell uses the standard SCT thread, so all SCT photo and visual accessories can be used without having to add a special adapter. A 1.25” SCT-type star diagonal/eyepiece holder is included as standard equipment.


  • Starbright XLT fully-multicoated: This state-of-the-art coatings package includes high reflectivity multilayer aluminum mirrors enhanced with titanium dioxide for high reflectivity, plus a unique combination of magnesium fluoride and hafnium dioxide antireflection coatings on both sides of the Schmidt corrector lens. Starbright XLT multicoatings give you higher light transmission for brighter deep space images and shorter exposure times during photography. They also visibly increase the contrast on subtle lunar, planetary, and nebula details when compared with a scope with standard coatings or multicoatings. For more information on the XLT multicoatings, click on the “optics” icon above.


  • Star diagonal: 90° viewing angle prism-type 1.25” star diagonal.


  • Eyepiece: Fully multicoated low power 1.25” 25mm (50x) eyepiece with a 1° field of view (twice the diameter of the full Moon).


  • Finderscope: 6 x 30mm straight-through achromatic design, with a wide 7° field of view. Focuses by loosening the trim ring behind the objective lens cell, screwing the lens cell in or out to focus, and tightening the trim ring to lock in the correct focus.


ConditionVery good
Warranty90 Day Warranty


  • Celestron 5" SCT optical tube
  • 45 degree image erect 1.25" diagonal
  • 25mm eyepiece
  • 6X30 finder and bracket
  • Rigel finder
  • V size dovetail bar
  • Front and rear caps
  • Carry bag


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