Αντανακλαστικός σωλήνας για Dobsonian 12 ιντσών FlexTube (Reflector)

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Τεχνικά Χαρακτηριστικά

• Product Name
  Reflector for Dobsonian 12-inch FlexTube (MPN SW-4021, SKU WLONONWCRDIIG, EAN 5901691604315)
• Brand
  Unknown / Unbranded (not conclusively Sky-Watcher)
• Optical design
  Newtonian reflector (primary + secondary mirror)
• Aperture
  305 mm (12 inches) approximately
• Focal length
  ~1500 mm (approximate)
• Focal ratio
  ~f/4.9–f/5 (approximate)
• Primary mirror
  Parabolic reflecting primary (typical for comparable models; not independently verified)
• Secondary mirror
  Diagonal secondary (typical; unverified)
• Tube design
  Collapsible FlexTube / telescoping optical tube
• Extended tube length
  ~140 cm (approximate for comparable models)
• Collapsed tube length
  ~91 cm (approximate for comparable models)
• Focuser
  2" single-speed Crayford-style (commonly fitted to comparable models; unverified for this SKU)
• Eyepiece adapter
  1.25" adapter (typical; unverified)
• Finder scope
  8?50 or 9?50 RACI finder (typical; unverified)
• Included eyepieces
  Often supplied: 25 mm and 10 mm 1.25" Pl?ssl (typical; unverified)
• Maximum theoretical magnification
  ~600? (some listings claim up to 720?; practical magnification lower)
• Optical tube weight
  ~20,900 g (approximate for comparable 12" FlexTube optical tube)
• Mount compatibility
  Dobsonian altazimuth (rocker-box) — may be tube-only
• Color / finish
  Typically black/dark tube (unverified for this SKU)
• Package dimensions (est.)
  Length 150 cm ? Width 60 cm ? Height 40 cm (estimated)
• Package weight (est.)
  25,000 g (estimated)
• Notes
  Specifications compiled from comparable 12" FlexTube Dobsonian listings (Sky-Watcher comparable models); association to MPN SW-4021 / EAN 5901691604315 not independently verified

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