Cloud Break Optics

OPEN BOX - 10" Flextube Collapsible Dobsonian (S11720) TUBE ONLY

OPEN BOX - 10" Flextube Collapsible Dobsonian (S11720) TUBE ONLY - Main image
$350 $500 In stock

Category: Reflecting Dobsonian

This sale only includes the optical tube. You will not receive a base if you purchase this. This is an open box product. It is unused and marked at a discount.

Quick Overview

  • 10" (254 mm) Dobsonian-style Newtonian
  • 1200 mm focal length (f/5)
  • 2" Crayford-style focuser with 1.25" adapter
  • 4-element Plössl 25 mm and 10 mm 1.25" eyepieces
  • 8x50 right angle erect-image finderscope
  • Solid rocker-mount with Teflon bearings and tension clutch for altitude
  • Teflon bearing for azimuth
  • Eyepiece height at zenith: 48"

      CollapsibleOTAs

      Makes transportation and storage of your telescope simple and convenient

      Binoviewer Settings

      A Sky-Watcher exclusive feature! Preset detents makes adjusting for binoviewing a snap. No more additional optics or crazy spacers, just drop, pop and view!

      Reconciling the desire for a large aperture telescope with the reality of a limited budget is an age-old problem. But it's a problem with an easy answer: Sky-Watcher Flextube Collapsible Dobsonians.

      Sky-Watcher USA Dobsonian telescopes deliver high-quality optics, huge aperture, solid construction and superb value. And only Sky-Watcher Dobsonians provide the extra portability and convenience of felxtube collapsible optical tubes. If you're looking for a big light bucket with a little price tag, look nofurther! Sky-Watcher USA has what you need.

      With apertures ranging from the ultra-portable 8 inch up to the monster light- gathering 16 inch model, all Sky-Watcher USA Dobsonians come complete with Crayford-style focuser, two Super Plössl eyepieces and finderscope.

      Model

      10 inch

      Optical design

      Newtonian reflector

      Mirror diameter

      254 mm (10 in)

      Mirror type

      Standard parabolic

      Focal length

      1200 mm

      F-ratio

      4.7

      Finderscope

      8x50 right angle

      Eyepieces/Power

      25 mm (48x), 10 mm (120x)

      Focuser

      2 inch single-speed Crayford-style

      Base type

      Standard Dobsonian

      Tube weight (pounds)

      33

      Base weight (pounds)

      26.5

      Assembled weight (pounds)

      59.5

      Before you pay

      Check the method and total at checkout.

      When it ships

      Allow for processing time as well as the journey to you.

      Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

      Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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      If you need a refund

      Keep your order number and contact the store to start.

      Please contact us for the refund processing timeframe before returning an item.

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      Delivery costs

      Review the cost for your destination and chosen service.

      Standard Shipping · United States: $0.00

      Express Shipping · United States: $3.99

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      Returning an item

      Check the return conditions before sending anything back.

      United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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      Customer Reviews (4.2 / 5 · 5 reviews)

      Grace G. ★★★★★

      The Flextube mechanism makes this 10" surprisingly manageable to carry out to the backyard, and the views of Jupiter's bands were crisp even without a base yet. For the open-box price, getting an unused tube this size feels like a steal.

      Julian G. ★★★★★

      I was a bit nervous buying an open-box telescope, but this 10" tube is pristine and collimation held perfectly right out of the box. The collapsible Flextube design makes it much easier to transport than a solid tube, and the views of Jupiter's bands were incredibly sharp.

      Ella ★★★★★

      The tube arrived in perfect condition despite being open box, and the collapsible design makes it so much easier to store than my old solid tube. I was surprised how crisp the views are through a 10-inch mirror even from my light-polluted backyard.