Vixen ED103S Refractor Telescope w/Sphinx SXD2 Mount & Starbook 10

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Vixen ED103S Refractor Telescope w/Sphinx SXD2 Mount & Starbook 10
Item # VX-25081
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  • This Vixen ED103S Refractor Telescope features Vixen's Super Low Dispersion optical glass.
  • Provides high contrast images that are practically free of false color.
  • The Vixen Sphinx SXD2 Equatorial Mount has the capability of handing loads of up to 50 lbs.
  • Starbook 10 controller features a 5" full-color HD quality LCD screen, 270,000+ object database, backlash compensation, virtual and permanent periodic error correction (PEC), hibernate mode, and adjustable brightness!
  • Package includes 90mm tube rings, compression ring, and Vixen Dual Speed Focuser.


Vixen ED103S Refractor Telescope

Super Low Dispersion Glass featured in this Vixen ED103S Refractor 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.

Astrophotographers will appreciate the high contrast images that can be obtained with this telescope. This Vixen ED103S refractor includes 90mm tube rings, compression ring, and Vixen Dual Speed Focuser. Manufactured in Japan.

Vixen Sphinx SXD2 Equatorial Mount and Starbook 10 Controller

Vixen has modified the design and construction of their cutting-edge SXD equatorial mount. The new SXD2 has a higher loading capacity along with more rigidity allowing for a steadier stage for astrophotography. Quiet stepping motors provide smooth slewing and fast command response.

Increased Loading Capacity: RA and DEC Axes are both manufactured from solid steel with brass wheel gears. This allows the mount the ability to take on loads of up to 50 lbs with counterweights included for astrophotography.

Smooth RA and DEC Movement: The interior of the new SXD2 is vastly different from prior SX Mounts. RA and DEC axes as well as the screw gear shafts now have added bearings. The worm screw gears are rigorously inspected for exact concentricity and are lapped in the whole circle for smooth movement.

Included with the SXD2 Mount is Vixen's new Starbook 10 controller, previously available only with the SXP Mount. The Starbook 10 consists of an enormous catalog of over 270,000 objects so that you'll be able to locate your desired target no matter where you are. Features a beautiful, full color, sizable LCD screen. Other convenient features such as night vision mode, brightness control, glowing control buttons, hibernate control, and bilingual options are also included with the Starbook 10. This controller also supplies backlash compensation; automatic Go-To performance; lunar, sidereal, solar, man-made satellite, and comet tracking modes; and both virtual and permanent PEC, advancing the SXD2 mount's gear efficiency.

The Screen:

  • Full-color, 5" HD quality LCD screen
  • Adjustable brightness
  • Red night vision mode available for both screen and controller buttons
The Brain:

  • 270,000+ object database
  • Permits user defined objects
  • Artificial satellite and comet tracking modes
  • Backlash compensation
  • Virtual and permanent PEC. Virtual PEC is automatically loaded on the mount's programing and will compensate for typical errors. Permanent PEC is a user determined correction which can be saved to controller, further refining the SXD's tracking accuracy.
  • Adjustable hibernate mode. Save your battery life! "Wake up" your mount by simply switching over the power switch. No need to loosen clamp levers on the RA and DEC axis.
Controller Hardware:

  • LAN PC connection
  • Integrated autoguider port
  • Expansion slot available with purchase of separately available Advance Unit

Vixen Product Number: 25081
Additional Information

Additional Information

SKU VX-25081
Manufacturer Vixen
Telescope Series Vixen ED
Optical Design Refractor - Apochromatic
Mount Type Equatorial - GoTo
Warranty 5 Year Warranty
Telescope Aperture 4" (103mm)
Telescope Focal Length 795mm
Telescope Focal Ratio f/7.7
Limiting Stellar Magnitude 11.8
Optical Coatings Fully Multi-Coated
Dew Shield Included? Yes
Optical Tube Outer Diameter 115mm
Length of Optical Tube 31.8" (585mm)
Optical Tube Weight 8.1 lbs
Tube Color or Finish Gloss White
Focuser Size 2"
Focuser Style Rack & Pinion
Manual or Electronic Focusing? Manual
Focusing Speeds Two-Speed
Objects in Database 272,342
Power Adapter Included AC Wall Adapter
Hand Controller Included? Yes
Mount Weight 19 lbs
Tripod Type Included Adjustable with Aluminum Legs
Included Items

Included Items

  • Vixen ED103S Refractor Telescope
  • Sphinx SXD2 Equatorial Mount
  • HAL-130 Tripod
  • Starbook 10 Controller
  • 90mm Tube Rings
  • Compression Ring
  • Dual-Speed Focuser
  • 7x50 Finderscope & Bracket
  • Flip Mirror Diagonal
  • Dovetail Plate
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