Vixen ED103S Refractor Telescope w/ Sphinx SX2 Mount & Star Book One

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Vixen ED103S Refractor Telescope w/ Sphinx SX2 Mount & Star Book One
Item # VX-25075
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  • This Vixen ED103S Refractor Telescope has newly designed high definition glass that allows for superb optical performance in a short tube.
  • Uses Vixen's Super Low Dispersion optical glass.
  • The Vixen Sphinx SX2 Equatorial Mount features high precision mechanics yet is easy to operate.
  • Star Book One hand controller gives users the ability to track celestial objects with little effort.
  • The Vixen Sphinx SX2 Equatorial Mount is easily transportable and can be assembled quickly.
  • Package includes 90mm Tube Rings, Finderscope, Flip Mirror Diagonal, and Half Pillar.


Vixen ED103S Refractor Telescope

The recently designed high definition ED lens in this Vixen ED103S Refractor allows for superb optical performance in a short tube for easy utilization. All Vixen ED Apochromatic Refractors feature Super Low Dispersion Glass in the objective lens that quells leftover chromatic aberration far below the threshold of visibility for sharp, high contrast images for visual observers as well as astrophotographers. Enjoy clear, pinpoint star images due to this refractor's new SD lenses and a shorter f/7.7 focal ratio. Vixen SD glass generates high contrast observing that is practically free of false color. The design employs glass technology that is free of hazardous lead, helping promote a cleaner global ecosystem.

Vixen has developed new lenses that focus the full spectrum of visible light to a crucial point more precisely when compared with previous incarnations. These lenses are practically free of chromatic aberration in all colors and are extremely sharp edge to edge. Astrophotographers will appreciate the high contrast images that can be obtained with this telescope. Includes 90mm tube rings, finderscope, flip mirror diagonal, half pillar, and two eyepieces. Manufactured in Japan.

Vixen Sphinx SX2 Equatorial Mount and Star Book One Controller

Introducing the new Vixen Sphinx SX2 Equatorial Mount, the latest in a long line of acclaimed Sphinx Mounts. In spite of its high precision mechanics, using the SX2 mount is not complicated. Includes the new Star Book One hand controller that will allow you to track celestial objects with little effort.

Star Book One Functions:

  • Celestial, Solar, Lunar, and King's Rate Tracking
  • Slewing speeds variable from 0.1x to 999x sidereal
  • Backlash compensation
  • Periodic Error Correction
  • Autoguider port
  • Adjustable screen brightness
  • Direction keys
  • Red LED light

Easy Secure Setup: The Sphinx SX2 Equatorial Mount can be assembled quickly. Tripod attachment requires only a single bolt. Both novice and veteran hobbyists will enjoy this mount's mobility, its simple to operate controller, its ability to download forthcoming upgrades straight to the controller, and the assortment of optical tubes that can be employed using Vixen's universal dovetail plate.

Unique Motor Layout: RA and DEC motors are internally placed, allowing them to behave like a built in counterweight. Extra counterweights are not necessary for smaller telescopes.

Retractable Counterweight Shaft: The counterweight shaft is made of rust-proof stainless steel and retracts into the Sphinx mount body for painless storage.

Vixen Product Number: 25075
Additional Information

Additional Information

SKU VX-25075
Manufacturer Vixen
Telescope Series Vixen ED
Optical Design Refractor - Apochromatic
Mount Type Equatorial - Motorized
Warranty 5 Year Warranty
Telescope Aperture 4" (103mm)
Telescope Focal Length 795mm
Telescope Focal Ratio f/7.7
Limiting Stellar Magnitude 11.8
Dew Shield Included? Yes
Optical Tube Outer Diameter 4.5" (114mm)
Length of Optical Tube 31.8" (585mm)
Optical Tube Weight 8.1 lbs.
Tube Color or Finish Gloss White
Focusing Speeds Two-Speed
Finder Included None
Hand Controller Included? Yes
Mount Weight 15.5 lbs
Tripod Type Included Adjustable with Aluminum Legs
Included Items

Included Items

  • Vixen ED103S Refractor Telescope
  • Sphinx SX2 Equatorial Mount
  • HAL-130 Tripod
  • Star Book One Controller
  • Half Pillar
  • Carry Handle
  • Flip Mirror Diagonal
  • Finderscope
  • 90mm Tube Rings
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