Meade LightBridge 254mm f/5 Truss-Tube Dobsonian AZ Telescope

Meade LightBridge 254mm f/5 Truss-Tube Dobsonian AZ Telescope

Meade LightBridge 254mm f/5 Truss-Tube Dobsonian AZ Telescope

B&H # MEL10TTD MFR # 1005-05-03
Special Order
Expected availability: 7-14 business days

Product Highlights

  • Large 254mm (10") Dobsonian Reflector
  • 1270mm Focal Length, f/5 Focal Ratio
  • Rigid Anodized Aluminum Truss Tubes
  • Large 2" Two-Speed Crayford Focuser
  • Focus Lock and Tension Adjustment Knobs
  • Series 4000 26mm QX Wide-Angle Eyepiece
  • Red-Dot Finder with Bracket
  • Primary Mirror Cooling Fan
  • Manual Alt-Azimuth Floor Mount
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You Pay: $699.00

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Meade LightBridge overview

  • 1Description

Sporting the large light-bucket that is the hallmark of a Dobsonian, the Meade Instruments LightBridge 254mm f/5 Truss-Tube Dobsonian AZ Telescope gives users performance at a reasonable price. Its large primary parabolic mirror draws in copious amounts of light to reveal awe-inspiring details on the Moon and planets, and deep sky objects will be visible even for inexperienced observers.

Its impressively-fast f/5 focal ratio and 10:1 dual-speed Crayford focuser makes this an ideal choice for imaging deep sky objects. The fast focal ratio enables devices to capture images in less time than slower scopes with a significant reduction in the noise that can decrease resolution on imaging sensors. The focusing mechanism employed in the Crayford design gives it the ability to achieve tack-sharp focusing with zero backlash; and with a focus lock and tension adjustment, the focuser performs with the high precision required for viewing and imaging deep space objects. 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 floor mount weighs-in at 27-pounds and provides a rock-steady observational platform with very low vibration. This rocker mount features Teflon-coated roller azimuth bearings and large-diameter aluminum altitude bearings that allow the optical tube to move smoothly with limited vibrations. 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 Tube Assembly
  • 254mm (10") aperture
  • Fast f/5 focal ratio
  • Long 1270mm focal length
  • Dobsonian-style reflector configuration is ideal for detailed lunar and solar observation as well as deep-sky viewing
  • Rigid, open-truss design reduces overall weight versus solid-tube designs while being easier to transport and store
  • Lightweight and strong silver-finished anodized aluminum truss tubes
  • Four-vane steel secondary mirror support
  • Resolution: 0.56 arc sec
  • 10:1 two-speed Crayford focuser allows ultra-fine focusing without backlash — especially useful for deep-sky objects and splitting binary stars — with a 1.25" reducer adapter for smaller eyepieces and accessories
  • Focus lock maintains focuser placement and tension adjustment allow user to adjust the pressure to improve focuser feel and precision
  • OTA Cooling Fan speeds the cool-down process of the primary mirror, improving image quality; runs on eight AA batteries
  • Weight: 38-pounds
  • Manual alt-azimuth floor mount
  • Laminated wooden construction helps to absorb vibration while adding stability
  • Teflon-coated roller azimuth bearings provide smooth and even movement with limited vibrations
  • Large-diameter aluminum altitude bearings are easy to move by hand
  • Hand-adjustable variable-tension brake for smooth and stable movement
  • Weight: 27-pounds
Include Accessories
  • 2" barrel diameter ensures a comfortable eye relief and exit pupil
  • Accepts most 2" astronomical eyepiece filters
  • 26mm eyepiece produces 49x power
  • Wide-angle design provides sweeping views
    Red-dot finder:
  • Un-magnified view ensures a wide field of view for easier alignment and faster star-hopping navigation
  • Four selectable reticle patterns allows user to tailor pattern to their needs or preferences
  • Seven intensity levels ensures reticle visibility without affecting night-adjusted vision
UPC: 709942503104
In the Box
Meade LightBridge 254mm f/5 Truss-Tube Dobsonian AZ Telescope
  • 26mm QX Wide-Angle Eyepiece
  • 1.25" Reducer Adapter
  • Red Dot Finder with Bracket
  • Mount Base and Cradle
  • AutoStar Suite™ Software
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Meade LightBridge specs

    Optical Design Dobsonian reflector
    Aperture 254.0 mm
    Focal Length 1270.0mm
    Focal Ratio f/5
    Eyepiece Barrel Diameter 2"
    1.25" with included reducer adapter
    Diagonal None
    Finderscope Red-dot
    Tripod None
    Mount Type Manual alt-azimuth
    Motor None
    GO-TO Capability None
    Power Source 8 x AA batteries, for cooling fan
    Optical Tube Dimensions Not specified by manufacturer
    Weight OTA: 38.0 lb / 17.2 kg
    Mount: 27.0 lb / 12.2 kg
    Total: 65.0 lb / 29.5 kg
    Packaging Info
    Package Weight 76.8 lb
    Box Dimensions (LxWxH) 1.0 x 1.0 x 1.0"

    Meade LightBridge reviews

    LightBridge 254mm f/5 Truss-Tube Dobsonian AZ Telescope is rated 3.0 out of 5 by 1.
    Rated 3 out of 5 by from Ok for the price but important compromises There are some good quality components such as a very nice two-stage focuser. However the primary mirror cell is a major let-down. It would not keep collimation even for one session, largely because of weak springs and the kludgy nature of the knob arrangement. The views were mediocre, so the optics may not have been their best example. The motions of the scope were ok for an econo-dob. The recticle finder was a pain in blocking out too much light. Get a Telrad to replace it. Get springs and knobs from Bobs Knobs.
    Date published: 2015-09-16
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