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Vixen - 140mm NA140SSf (f/5.7) Neo Achromat Telescope - (Sphinx SXW Mount, Tripod)


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Availability: In stock

Regular Price: $3,698.00

Special Price: $3,498.00

Manufactured by: Vixen

Vixen - 140mm NA140SSf (f/5.7) Neo Achromat Telescope - (Sphinx SXW Mount, Tripod)


Vixen 140mm NA140SSf Neo Achromat Telescope with Sphinx SXW Equatorial Mount


Now with the 2 Speed focuser,  flip mirror , 7x50 FinderScope and Tube Rings complete

The NA140S (Neo-Achromatic) refractor features a two element secondary lens at the rear of the optical tube to provide a flatter field of view (Petzval design). Spherical aberration and field curvature are less than 1/3 to 1/5 of standard doublet refractors.

Weighing in at 14.3 lbs this 5.5 inch Vixen telescope is an incredible performer. Deep Sky objects are easily visible and Astro-Imagers looking for a fast instrument with clear aperture will be impressed with the NA140’s performance. The advanced 4-element objective lens, set in two groups, minimizes residual chromatic aberrations. With its unique Petzval like correcting lens at the rear, this Neo-Achromatic refractor telescope is specifically designed to provide improved color and a flat field, ideal for astrophotography. Manufactured in Japan. Includes Vixen's new Dual Speed Focuser.


One user states:

“Correction is so good, that I have also used the telescope for stellar and lunar photography - a use for which I had not originally purchased this telescope.” The NA140 “has excellent imagery across the field of the Canon DSLR but seems to have little or no apparent lateral color error. Its low weight for its aperture, easy portability and excellent medium focal length and fast f-ratio make it the perfect 'one telescope does it all’ product.


Vixen Sphinx SXW Mount

Pair this optical tube with the SPHINX equatorial mount. The STARBOOK controller have been intelligently engineered for high-speed automatic location of celestial objects. It is now possible to explore the beauty of the night sky with greater ease and stability. The SPHINX comes standard with built in motors and the world's first star chart go-to controller, STARBOOK, with a large full color LCD display. The Sphinx’s design is exceptional and the exterior styling is equally attractive.

Vixen's Sphinx SXW Equatorial Mount features leading edge innovations developed through decades of experience in building German Equatorial Mounts. The Vixen SPHINX SXW mount and STAR BOOK hand controller are groundbreaking advancements in high speed, portable GoTo mount technology.


  • Easy Secure setup: The Sphinx SXW Equatorial Mount sets up in minutes. One bolt secures it to the tripod. Beginners and seasoned hobbyists will benefit from the portability of the mount, the easy to use controller, the ability to download future upgrades directly to the controller and the versatility of placing a variety of optical tubes on this equatorial mount with Vixen's universal dove tail plate.
  • High Speed Precise GoTo Slewing: The short profile declination head and internal motors greatly improve balance and motion around the RA Axis. This innovative, lightweight design guarantees precise motor control.
  • Unique Motor Layout: The internal placement of the the RA and DEC motors allow the motors to act as a built in counterweight. Small telescopes require no additional counterweights.
  • Retractable Counterweight Shaft: Constructed of corrosion resistant stainless steel, it retracts into the Sphinx mount body for easy storage.


Additional Information

Name Vixen - 140mm NA140SSf (f/5.7) Neo Achromat Telescope - (Sphinx SXW Mount, Tripod)
Manufacturer Vixen
Model 95868
Aperture 140mm
Diameter 5.5” (140mm)
Finderscope 7x50, field of view 7 degrees
Focal Length 800mm
Focal Ratio f/5.7
Focuser Dual Speed
Light Gathering Power 400x
Limiting Stellar Magnitude 12.5
Optical Coatings Multi Coating
Optical Design Neo Achromat Refractor 2 Group 4 Element Design
Optical Tube Length 41” (1040mm)
Optical Tube Weight 14.3 lbs