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Explore Scientific 10" Truss Tube Generation II Dobsonian Telescope
Explore Scientific 10" Truss Tube Dobsonian Telescope

Explore Scientific 10" Truss Tube Generation II Dobsonian Telescope

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Your Price: CAD1,349.00
Retail Price:CAD1,558.91

Your Savings:CAD209.91(13%)

Usually ships in 5-7 business days
Part Number:DOB1045-00

Choose Options or Accessories if Applicable

Explore Scientific DOB Telescope Accessories
ES-DOB1012SHR Explore Scientific Shroud for 10" and 12" Truss Tube DOB (+CAD149.00)
ES-DOB16SHR Explore Scientific Shroud for 16" Truss Tube DOB (+CAD199.00)
DOB-CW DOB-Counter Weight Set for DOB1045-00, DOB1245-00, DOB1645-00 (+CAD99.00)
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Product Highlights

  • 10" / 254mm Aperture
  • 1270mm Focal Length, f/5 Focal Ratio
  • 10:1 2" Dual-Speed Helical Focuser
  • Red-Dot LED Finderscope
  • Floor-Based Manual Alt-Az Mount
  • Altitude Tension Clutch
  • Dual Radial Main-Mirror Fans
  • Tool-Free Breakdown and Assembly

This is a Generation II telescope. All updates have been performed on this telescope.

Sporting the large light bucket users have come to expect from a Dob, the Explore Scientific 10" f/5 Truss Tube Dobsonian Telescope gives users performance at a reasonable price. Its large parabolic primary mirror is highly reflective and corrects spherical aberration to eliminate distortion across the entire field of view, especially at the edges, with a 24% secondary mirror obstruction.

The large 10" aperture draws in copious amounts of light show awe-inspiring details on the Moon and planets, deep sky objects will be visible even for inexperienced observers, and bright star clusters are resolved to their core. Its f/5 focal ratio and 10:1 dual-speed helical focuser makes this an ideal choice for imaging. The fast focal ratio enables devices to capture images in less time than slower scopes, while the unique focusing mechanism employed in the helical design gives it the ability to achieve tack-sharp focusing with zero backlash that rack-and-pinion focusers are generally unable to. This 2" focuser will accept larger eyepieces so users can enjoy a truly immersive visual experience and will ensure larger imaging sensors are completely covered.

The rocker box weighs-in at just under 15 pounds and provides a rock-steady observational platform with very low vibration. This rocker mount features high-altitude bearings with aluminum structures that allow for fine adjustment flows at high magnifications, and dual radial primary mirror fans to quickly adjust the temperature to reduce distortion. Finally, the tension control handle allows users to adjust the settings allowing them to move the mount easily and smoothly by hand with minimal vibration and maintain its position when released.

Optical Performance
  • 10" aperture
  • f/5 focal ratio
  • 1270mm focal length
  • Highly reflective mirrors increase image brightness
  • 24% secondary mirror obstruction
  • Dual radial primary mirror fans adjust the mirror temperature to reduce distortion
    • Runs on eight user-supplied AA batteries
  • Manual rocker mount design
  • High altitude bearings for a wide adjustment and travel range
  • Tension control handle allows for smoother rotation to reduce vibrations and limit over-compensation
  • 10:1 dual-speed helical
  • Accepts 2" eyepieces and accessories
  • Helical focusers use a toothless design that allows for smooth and precise focusing without backlash


NameExplore Scientific - 10 inch Ultra-Light Truss Tube Dobsonian Telescope
ManufacturerExplore Scientific
Angular Field of View 0.50 arc seconds
Aperture10" (254mm)
Aperture Ratio
CapsRain / Dust
Case(2) Aluminum
ConstructionAluminum / Aluminum sandwich
DesignNewtonian Reflector
FinderscopeLED - Red Dot
Fine FocusYes
Focal Length 1270mm
Focal Ratiof/5.2
FocuserDual speed
Lens MaterialBK-7
Optical DesignReflector
Optical TubeAluminum
Warranty3 years

Weight Primary mirror: 44.5 lb / 20.2 kg
Rocker box: 14.8 lb / 6.7 kg
Total: 59.3 lb / 26.9 kg

In the Box
Explore Scientific 10" f/5.2 Truss Tube Dobsonian Telescope
  • Collimation Assist Tool
  • Red Dot LED Finderscope
  • Limited 1-Year Warranty, Extendable to Transferrable Lifetime Warranty with Registration
  • Suggested Accessories: 2-inch HR Coma Corrector ; Explore Scientific Waterproof Eyepieces ; Focal Extenders


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