Vixen Replica of Sir Issac Newton's f/4 Newtonian Reflecting Telescope

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Vixen Replica of Sir Issac Newton's f/4 Newtonian Reflecting Telescope

This fully operational telescope is a replica of one of the great revolutions in astronomy history; a copy of Isaac Newtons original Newtonian reflector design. This telescope is not only a fully functional Newtonian reflector of solid Vixen quality but an invaluable display piece and historical memento, a constant reminder of Isaac Newton's great contributions to science in general, particularly astronomy in this case.

Before Newton invented the Reflector in the middle of the seventeenth century, refractor types telescopes focused the various colors of light at different locations from the lens, which produced chromatic aberration (color blur). Attempts to correct this produced longer telescopes that were difficult to stabilize and focus. Newton, being a scientist possessed of impressive intellect and creativity, realized the limit of the telescopes that existed and searched for a solution.

The Newtonian design of telescope was the end result of his search, with this replica being a splendid recreation of the compact thirty centimeter sized telescope he brought before English Royal Society Conference in 1672. However, while it may have that antique vintage appearance and an authentic design, this scope was crafted with modern optical techniques and methodologies, performing on par with any modern design of Newtonian Reflector of similar size! So not only is this a beautiful and deeply meaningful display piece, it is also a fully functional and useful tool for observing.

This testament to Newtons impact on astronomy utilizes the principles he discovered through experimentation and logical reasoning splendidly, as do all Newtonian telescopes. These principles have their core in the study of the spectra of light, in particular an observation of Sir Isaac Newtons. He realized that the color spectrum was seen when light passes through a prism. At first, Newton predicted that this rainbow, which consisted of different colors, was not due to the characteristic of the prism, but due to the characteristic of the light. He also reasoned that a white-colored light was a combination of light rays of different colors. Next, he discovered that the white light split into the rays that have different foci as it entered the prism. Finally, he discovered that the size of the spectrum depended on the prism. He concluded that when a weak prism was used, light was bent by a small angle and the rays of different colors were dispersed in a short spectrum, but when a prism which deflected light at a large angle was used, the dispersion of the color spectrum also became large.

Much of his information and study was gathered from a study on the then predominant refractor telescopes of his time. He concluded in the end that a method that did not disperse the light was a valuable idea; deciding upon use of a pair of mirrors to reflect the light rather than a prism to refract it. His design was the basis of every Newtonian since, and it's acceptance and popularity can be said to have acted as a source of much experimentation and evolution among telescopes beyond that point.

Thus this telescope replica is not merely a testament to the achievements of a great man, but also a testament to the progressive powers of science and creativity, and a constant reminder of how one innovation can spark manifold more, and even change a field of science- or the world- for the better. So we humbly request that you give it a strong consideration for a place in your home or observatory, as not only a splendid telescope in and of itself, but a reminder of the beauty of progress in more ways than one. For not only is it a replica of Sir Isaac Newtons original design and a reminder that way, but it is a usable modernized replica, an example of the very progress the original enabled! 


  • Optical Tube Type: Flexible-Tube Focus Adjustment Type
  • Primary Mirror Diameter: 70 mm
  • Focal Distance: 280 mm
  • Magnification: 14x (K 20 mm) / 28x (K 10 mm)
  • Optical Tube Material: Aluminum Alloy
  • Tube Coating: Triple-layer antique color hand-coating
  • Mount Type: Globe Pedestal
  • Mount Material: Varnished Pure ash
  • Optical Tube Length: About 300 mm
  • Optical Tube Diameter: 90 mm
  • Globe Diameter: 100 mm
  • Pedestal Diameter 220 mm
  • Total Height: About 305 mm
  • Incredible conversation and display piece


Aperture70 mm (2.75")
Camera/Eyepiece Connection1.25 Inch Barrel
Dawes Limit1.66 arcseconds
Focal Length280 mm
Focal Ratiof/4
Free ShippingYes
Limiting Magnitude13
Optical DesignNewtonian
Warranty5 Year Warranty

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Isaac Newton awesome reflector !

fantastic item! Crisp images, great optics. A stunning 'vintage ' telescope with historical roots and amazing conversation piece