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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Sky-Watcher Flextube 350P SynScan
Sky-Watcher Flextube 350P SynScan
Sky-Watcher Flextube 350P SynScan
Sky-Watcher Flextube 350P SynScan
Sky-Watcher Flextube 350P SynScan
Sky-Watcher Flextube 350P SynScan
Sky-Watcher Flextube 350P SynScan
Sky-Watcher Flextube 350P SynScan

Sky-Watcher Flextube 350P SynScan

by Sky-Watcher
SKU SW-S11830
Save 12% Save 12%
$3,995.00
$3,995.00 - $3,995.00
$3,995.00
$3,499.00
$3,499.00 - $3,499.00
$3,499.00
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  • 356mm (14-inch) Newtonian Reflector
  • 1650mm Focal Length
  • Fast f/4.6 Focal Ratio
  • SynScan GoTo with 42,900+ Object Database
  • Collapsible Flextube Design
  • Freedom Find Dual-Encoder Manual Pointing
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Sky-Watcher Flextube 350P SynScan GoTo Collapsible Dobsonian

    The Sky-Watcher Flextube 350P SynScan GoTo Collapsible Dobsonian combines a massive 356mm primary mirror with a fast f/4.6 focal ratio for breathtaking deep-sky views. Its 1650mm focal length provides the power to resolve fine planetary detail, while the computerized SynScan system automatically slews to over 42,900 celestial objects. This instrument gathers 36% more light than the next size down, delivering bright, high-contrast images directly to the 2" dual-speed Crayford focuser.

    356mm Aperture with 94% Reflectivity Coatings

    The heart of the Flextube 350P is its enormous 356mm (14-inch) borosilicate primary mirror. This light-gathering power, with a limiting magnitude of 15.2, resolves faint spiral arms in galaxies and intricate details in distant nebulae. The mirror features Radiant Aluminum Quartz (RAQ)™ coatings that deliver 94% reflectivity for the brightest possible images.

    Collapsible Design: From 60" to 38.5" for Transport

    Unlike traditional large-aperture Dobsonians, the Flextube 350P features a patented collapsible truss-tube design. This allows the 60-inch optical tube to retract to a compact 38.5 inches, making it significantly easier to transport to dark-sky sites. The system is engineered to maintain collimation after being collapsed and re-extended, minimizing setup time once you arrive.

    SynScan GoTo with 42,900+ Object Database

    The integrated SynScan GoTo system transforms this Dobsonian into a powerful exploration tool. The hand controller's database includes over 42,900 objects, allowing you to automatically locate and track planets, nebulae, galaxies, and clusters with ease. The patented Freedom Find™ dual-encoder technology also lets you move the telescope manually without losing your alignment, giving you the freedom to browse the sky intuitively and then return to computerized tracking.

    • Full GoTo Control: Automatically slew to any object in the extensive Messier, NGC, IC, and SAO catalogs.
    • Freedom Find™ Technology: Push the telescope manually to a new target at any time without needing to realign the GoTo system.
    • Multiple Tracking Rates: Includes Sidereal, Lunar, and Solar tracking rates for precise, steady views of any celestial object.

    Engineered for Stability and Precise Control

    Despite its size, the Flextube 350P is designed for smooth, stable operation. The Dobsonian base weighs 94 lbs and provides a solid foundation for the 53 lb optical tube assembly. A patented Tension Control Handle allows you to adjust the friction on the altitude axis, ensuring smooth motion whether you are using light 1.25" eyepieces or heavier 2" accessories. The 2" dual-speed Crayford focuser provides the fine control needed to achieve critical focus, especially at the high magnifications this telescope can achieve (up to 701x).

  • How does the Flextube 350P's Freedom Find feature work?

    The Freedom Find system uses dual encoders on each axis. This allows you to disengage the motors and move the telescope by hand to a new object. The secondary encoders keep track of the telescope's position, so the SynScan computer never loses its alignment. You can immediately resume GoTo slewing and tracking without having to perform a new star alignment.

    Is the Flextube 350P portable enough for one person to set up?

    While the collapsible design makes it highly portable for its aperture, the individual components are heavy. The optical tube weighs 53 lbs and the base weighs 94 lbs. While one strong person might manage it, a two-person setup is recommended for safety and ease. The telescope transports as two main pieces, which fit into most vehicles more easily than a solid-tube equivalent.

    What kind of detail can I expect to see on Jupiter with the Flextube 350P?

    With its 356mm aperture and 1650mm focal length, the Flextube 350P offers stunning planetary views. On Jupiter, you can expect to clearly resolve multiple cloud bands, the Great Red Spot, and shadow transits from its Galilean moons. The 0.33 arc-second Dawes limit means that under steady seeing conditions, you will resolve extremely fine details in the planet's atmosphere.

    How will the Flextube 350P perform on faint galaxies like the Pinwheel Galaxy (M101)?

    This is where the 356mm aperture excels. For a large, face-on spiral galaxy like M101, the telescope's light-gathering power (36% more than a 12-inch scope) will reveal not just the bright core but also the faint, sprawling spiral arms and embedded H-II regions, especially from a dark-sky location.

    Do I need to collimate the Flextube 350P every time I use it?

    While the Flextube design is engineered to hold collimation well, it's always good practice to check it after transport and setup, especially for a fast f/4.6 system. A quick check with a laser collimator or Cheshire eyepiece will ensure you are getting the sharpest possible views. The open truss design makes accessing the primary and secondary mirror adjustment screws straightforward.

    What power supply is required for the Flextube 350P's SynScan system?

    The SynScan system requires a 10 to 15 Volt DC power supply capable of providing at least 1 Amp, with a 2.1mm center-positive plug. A portable DC power tank or an AC-to-DC adapter is necessary to operate the GoTo and tracking motors.

  • UPC 050234118309
    Optical Info
    Optical Design Newtonian
    Mirror Coatings Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity
    Glass Type Borosilicate
    Primary Aperture 356mm
    Focal Ratio f/4.6
    Focal Length 1650mm
    Secondary Diameter 83mm
    Secondary Obstruction (by diameter) 23%
    Secondary Obstruction (by area) 5%
    Observational Info
    Dawes Limit 0.33 arc-seconds
    Rayleigh Limit 0.39 arc-seconds
    Limiting Magnitude 15.2
    Minimum Magnification 50x
    Maximum Magnification 701x
    Light Gathering (vs. next size down) 36%
    General Info
    Focuser 2" Dual Speed Crayford
    OTA Length (Retracted/Extended) 38.5" / 60"
    OTA Outer Diameter 16.5625"
    OTA Weight (with accessories) 53 lbs
    Dobsonian Base Weight 94 lbs
    Dobsonian Base Measurements 36" x 31"
    Zenith Eyepiece Height 64"
    Accessories
    Included Finder 9x50
    Included Eyepieces 20mm / 12.5mm
    Magnification w/ Included Eyepieces 82.5x / 132x

    • Flextube 350P Optical Tube Assembly

      × 1

    • SynScan GoTo Dobsonian Base

      × 1

    • SynScan V5 Hand Controller

      × 1

    • 9x50 Straight-Through Finder Scope

      × 1

    • 20mm Plössl Eyepiece (1.25")

      × 1

    • 12.5mm Plössl Eyepiece (1.25")

      × 1

    • 2" to 1.25" Eyepiece Adapter

      × 1

    • Dust Caps

      × 1

  • Sky-Watcher 2-Year Limited Warranty