Σωλήνας Οπτικός Sky-Watcher BKP Quattro 250/1000 OTA

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Τεχνικά Χαρακτηριστικά

• Brand
  Sky-Watcher
• Model
  BKP Quattro 250/1000 OTA
• MPN
  SW-1010
• EAN
  5901691604865
• SKU
  WLONONWCRDIIC
• Product Type
  Optical Tube Assembly (OTA) - photographic Newtonian
• Optical Design
  Newtonian reflector (photographic Newtonian)
• Aperture (Primary mirror diameter)
  250 mm (some listings: 254 mm)
• Focal Length
  1000 mm
• Focal Ratio
  f/4
• Highest Practical Magnification
  ~500? (dependant on source)
• Angular Resolution
  ~0.48–0.5 arcseconds
• Light Gathering vs 200 mm
  ~56% greater (reported)
• Primary Mirror Material
  Low-expansion borosilicate / Pyrex-type glass (Quattro spec)
• Primary Mirror Coating
  Radiant Aluminum + Quartz (RAQ), ~94% reflectivity (reported)
• Secondary Mirror Size
  ~82 mm minor axis (250P spec)
• Secondary Support
  Ultra-thin spider vanes (~0.5 mm) to reduce diffraction
• Collimation
  Primary and secondary fully collimatable; large knurled primary collimation knobs
• Focuser Type
  Dual-speed Crayford (linear-power) focuser
• Focuser Size
  2 in (50.8 mm)
• Fine-Adjustment Ratio
  10:1
• Focuser Travel
  ~37 mm (one listing)
• Adapters Supplied
  1.25" and 2" visual adapters; piggyback DSLR adapter (varies by bundle)
• Finder Scope
  Typically 9?50 (some regional listings 8?50)
• Mounting Hardware
  Tube rings included; Vixen-style dovetail bar
• Included Accessories
  Tube rings, dovetail bar, piggyback adapter (contents vary by retailer)
• Eyepieces
  Not supplied
• Intended Use
  Astrophotography (wide-field), deep-sky imaging, visual observation with accessories
• Tube Material
  Standard metal tube for Quattro-250P; separate carbon-fibre variant exists (Quattro-10C)
• Tube Length
  Reported ~925–1120 mm (one listing: 1120 mm)
• External Tube Diameter
  ~288 mm (reported)
• Tube Weight (OTA)
  ~14.2 kg (some listings 14–15 kg)
• Typical Package Weight
  ~18 kg (estimated boxed weight)
• Color
  Black Sky-Watcher branded optical tube
• Mount Included
  No (OTA only) - suitable mounts recommended: EQ6-R Pro, AZ-EQ6 Pro, CQ350i Pro, EQ8-R Pro, Wave-150i
• Notes / Warnings
  Fast f/4 system demands accurate collimation and benefits from a coma corrector for wide-field imaging; specifications and included items vary by regional listing and retailer

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