Vixen NA140S NEO ACHRO Refractor Telescope OTA - 58681

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Item #VIXN-58681

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  • $1,999.00
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  • Neo-Achromat has 4 elements in 2 groups, greatly reduces false color
  • Correcting lens mounted in rear produces a nice flat field
  • Relatively fast f/5.7 focal ratio is great for imaging
  • Weighs just 14.3 pounds; a great performer that is also portable
  • Comes with dual-speed 1:7 focuser for precision
  • Matching tube rings mount easily to a variety of mounts
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  • Description

    Weighing in at 14.3 pounds, this 5.5 inch Vixen NA140S is an incredible telescope. 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 Vixen Neo-Achromatic refractor telescope is specifically designed to provide improved color and a flat field, ideal for astrophotography.

    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, excellent medium focal length and fast f-ratio make it the perfect 'one telescope does it all’ product.”

    Manufactured in Japan. Includes Vixen's Dual Speed Focuser.

    Supplier SKU


    What's Included

    • Vixen NA140S Neo-Achro Refractor
    • Dual Speed Focuser
    • Tube Rings
    • Lens Cap

  • Dimensions & Specifications

    Optical Design:

    Neo Achromat Refractor

    Lens Elements:


    Lens Groups:



    140 mm

    Focal Ratio:


    Focal Length:

    800 mm


    Dual Speed

    Resolving Power:

    0.82 arc seconds

    Limiting Magnitude:


    Light Gathering Power:


    OTA Diameter:

    140 mm

    OTA Length:

    1040 mm

    OTA Weight:

    14 pounds

    Mounting Type:


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    Manufacturer Warranty

    Default manufacturer warranty.

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