Vixen NA140S NEO ACHRO Refractor Telescope OTA

Popular Refracting Telescope

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Item #VIX364-1

  • Your Price:
  • $1,999.00
  • + FREE Shipping
  • 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
Questions? Let our experts help!
  • 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:


  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    Default manufacturer warranty.

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

Ask The Experts

Have questions about an item or need advice on selecting the right astronomy gear? Our team of telescope experts is here to help! Avid amateur astronomers themselves, they've tested products in the field and can provide personalized recommendations.

You can reach our Customer Support line at 1-800-303-5873. We're open 8 a.m. to 8 p.m. Central Time, Monday through Friday and 9 a.m. to 4 p.m. on Saturday.

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