More products from the brand :Sky-Watcher

Sky-Watcher Skyliner-400P FlexTube

CHF 2'799

Disponible en stock chez le fournisseur

Free delivery against signature
Easy, free returns

Sky-Watcher Skyliner 406P FlexTube - The ultimate Dobson for visual astronomers

A giant 406 mm opening in a retractable format!
The Sky-Watcher Skyliner 406P FlexTube is an observational beast designed for demanding astronomers. With its 406 mm primary mirror, it captures unsuspected detail in the faintest deep-sky objects, while remaining fluid to use thanks to its manual Dobson mount. All in a retractable FlexTube design for easy transport and storage.

NEW : supplied with two wide-angle eyepieces (12.5 mm and 20 mm - 70° field of view), a 1.25″ adapter with brass clamping ring to protect your eyepieces, a universal smartphone adapter, plus a Crayford 2″ double-speed eyepiece holder for fine focusing, even at high magnification.

FlexTube: a giant telescope that fits in your car

The system Retractable FlexTube allows the tube to be reduced in length from 168.5 cm to just 107.1 cm. This foldable design makes transporting a 406 mm much more accessible. Once in the viewing position, the 3-point locking system ensures perfect rigidity.

Dobson mount: simplicity for performance

Dobson's wooden alt-azimuth mount rests on a fluid swivel base, allowing intuitive manual star tracking. This proven concept, popularized by John Dobson, makes this telescope quick to assemble, simple to use, and extremely stable - no electronics, no motors, just observing pleasure.

Exceptional parabolic optics

The primary mirror parabolic with RAQ™ (Radiant Aluminum Quartz) coating offers reflectivity up to 94 % for bright, sharp, high-contrast images. The ultra-thin secondary support (0.5 mm) minimizes diffraction, guaranteeing great sharpness in deep-sky stars and structures. This telescope is a benchmark for both high-magnification planetary observations and diffuse nebulae.

Technical specifications

Lens type Newton reflector on Dobson mount
Primary mirror diameter 406 mm
Focal length 1800 mm (f/4.4)
Eyepieces included 12.5 mm & 20 mm - Wide angle 70° (1.25″)
Magnifications supplied 90x & 144x
Theoretical maximum magnification 812x
Lens holder Crayford 2″ double speed with 1.25″/2″ adapters
Mirrors Parabolic primary and secondary - RAQ™ treatment up to 94%
Secondary support 0.5 mm - minimum diffraction
Researcher 9×50 straight (optical)
Smartphone adapter Universal - 54 to 90 mm width
SLR connection Yes - Direct camera adapter
Tube dimensions Diameter: 540 mm / Length: 1071 mm (retracted) - 1685 mm (extended)
Locking system Mechanical 3-point locking
Frame Wooden alt-azimuth with accessory tray
Light collection (vs 350 mm) +34,5%

Why choose the Skyliner 406P FlexTube?

  • A 406 mm diameter for unrivalled visual performance
  • FlexTube retractable tube: easy to transport despite its size
  • RAQ™-coated parabolic optics - ultra-bright images
  • Crayford 2″ double-speed eyepiece holder for fine focusing
  • Sturdy, flowing Dobson frame, perfect for visuals

Conclusion

Visit Sky-Watcher Skyliner 406P FlexTube is an elite instrument for astronomers with a passion for visual observation. Designed to seek out the finest details in the deep and planetary sky, yet transportable and easy to use, it is quite simply the king of consumer Dobsons. An astronomical dream machine.

Products in the same category

Skywatcher Astrolux 76/700
Skywatcher Astrolux 76/700
CHF 149
Caméra ToupTek G3M678M  (IMX678M mono)
ToupTek G3M678M camera (IMX678M mono)
CHF 219
DayStar Quark - Sodium
DayStar Quark - Sodium
CHF 1'215
Monture harmonique Rainbow Astro RST135E (encodeurs Renishaw)
Rainbow Astro RST135E harmonic mount (Renishaw encoders)
CHF 6'299
GM1000 HPS EP (Enhanced Performance)
GM1000 HPS EP (Enhanced Performance)
CHF 10'799
Filtre anti-pollution lumineuse MSM – Verre didyme pour la photographie nocturne
MSM light pollution filter - Didyme glass for night photography
CHF 79
Vixen VC200L 2 "VISAC" (Cassegrain asphérique de sixième ordre)
Vixen VC200L 2 "VISAC" (Sixth-order aspherical breakgrain)
CHF 1'999
Sky-Watcher Explorer-300PDS
Sky-Watcher Explorer-300PDS
CHF 949
Uranus-M Pro (IMX585)
Uranus-M Pro (IMX585)
CHF 629
Sky-Watcher Explorer-150P avec monture EQ3-2
Sky-Watcher Explorer-150P with EQ3-2 mount
CHF 479
Sky-Watcher Explorer-200PDS sur EQ5
Sky-Watcher Explorer-200PDS on EQ5
CHF 899
Skywatcher Skyhawk-114
Skywatcher Skyhawk-114
CHF 229
Calendrier Astronomique 2026 par notre super Arnaud !
2026 Astronomical Calendar by our super Arnaud!
Price range: CHF 50 through CHF 130
Sky-Watcher Explorer-150PDS sur monture EQ3 PRO Go-To
Sky-Watcher Explorer-150PDS on EQ3 PRO Go-To mount
CHF 979
Dwarf Mini
Dwarf Mini
Price range: CHF 309 through CHF 439
Skywatcher Explorer 130M Motorisé
Skywatcher Explorer 130M Motorized
CHF 349

Our new products

Sky-Watcher EQ5 PRO
Sky-Watcher EQ5 PRO
CHF 898
Sky-Watcher EQ-AL55i PRO
Sky-Watcher EQ-AL55i PRO
CHF 849
Sky-Watcher EQM-35 PRO
Sky-Watcher EQM-35 PRO
CHF 869
Sky-Watcher HEQ5-R PRO
Sky-Watcher HEQ5-R PRO
CHF 1'278
Sky-Watcher EQ5
Sky-Watcher EQ5
CHF 459
Sky-Watcher EQ3-2
Sky-Watcher EQ3-2
CHF 319
Sky-Watcher EQ-2
Sky-Watcher EQ-2
CHF 219
Sky-Watcher AZ-3
Sky-Watcher AZ-3
CHF 179
Sky-Watcher STARQUEST DX
Sky-Watcher STARQUEST DX
CHF 198
Sky-Watcher AZ PRONTO (tête seul)
Sky-Watcher AZ PRONTO (head only)
CHF 129
[category_menu_mobile]