Uw klantgegevens  |  Mijn verlanglijst  |  Inhoud winkelwagen  |  Afrekenen   
  Hoofdpagina » Telescopen » Refractor - Apochromatisch » William Optics » William Optics WO- Star 71mm F 4,9 Five elements flatfield

Nieuwe producten Meer
Ioptron skyguider pro full package
Ioptron skyguider pro full package
515,00 EUR
Snel zoeken
Over Robtics
Algemene voorwaarden
Privacy verklaring
Verzenden & retourneren
Prijs check
RTT 2017
Neem contact op

William Optics WO- Star 71mm F 4,9 Five elements flatfield

Prijs: 1.525,00 EUR


Robtics prijscheck
Product Details

Now introducing the NEW William Optics Star 71R&P!!!

This scope is ultimately designed for astronomers who want the best results in photographic/CCD imaging. The WO-Star71 imaging telescope provides pinpoint stars at the very edge of a 45mm imaging circle.

Key Features

  • 71mm f/4.9 Imaging Refractor Telescope.
  • FPL-53 glass for color free apochromatic performance.
  • 5 elements in 3 groups (3-1-1- configuration; new, unique, patented design - not a conventional objective/flattener/reducer design) .
  • Covers 45mm full frame imaging circle.
  • 2.5" dual speed R&P focuser.
  • Includes mounting rings and Vixen style dovetail.
  • Weight = 4.5 lbs / 2.05 kg (OTA only) ; 5.3 lbs / 2.4 kg (OTA with rings and dovetail) .
  • Focuser drawtube travel = 1.38" / 35mm.
  • Additional Information

  • Focuser drawtube terminates in a male M48 thread. Telescope comes with a wide M48-Canon EOS adapter ring. Similar rings are available from other supplier for other brands of cameras. Not a conventional 2" focuser tube with locking thumbscrews..
  • Optional 1.25" 90-deg dielectric mirror diagonal sold separately for those wishing to use this as a visual. This diagonal comes with a custom adapter that connects directly to the M65 female thread on the telescope's focuser tube; you cannot use standard 1.25" diagonals. Telescope cannot reach focus with larger 2" diagonals.
  • Optional soft carry case available separately.
  • Product Specificaties

    Aperture 71mm
    Focal Ratio F/4.9
    Focal Length 350.2 mm
    Objective Type 5 elements in 3 groups (3-1-1- configuration; new, unique, patented design)
    Lens Shade Retractable
    R&P Focuser 2.5" dual speed R&P focuser
    Focuser drawtube travel = 1.38" / 35mm
    Type of Mount Includes mounting rings and Vixen style dovetail
    Tube WeightWeight = 4.5 lbs / 2.05 kg (OTA only); 5.3 lbs / 2.4 kg (OTA with rings and dovetail)

    Specification for Apochromatic Lenses

    All WO refractors objective are double tested and inspected before shipping to our customer, these telescopes are free of coma and astigmatism.
    Since all individual lens surfaces are machine coated sometime it could have visual imperfections which do not affect the objective optical performance.

    Dimensions of scratches and points shall not exceed the following values:

    Surface finish class Scratches Points Accumulation of defects Width,not more, mm Total length, not more, mm, Diameter no more,mm, Quantity, no more Diameter.
    ScratchesWidth, not more, mm0.025mm
    Total length, not more1/4 of total lens diameter.
    Quantity no more 3
    Dots or spot pointsNo more, mm0.4mm
    Quantity, no more3
    Accumulation of defectsLimited area, mm0.8mm^2
    Total area of scratches and points, no more, square mm5.8mm^2
    Stel een vraag

    Momenteel wordt bekeken:  William Optics WO- Star 71mm F 4,9 Five elements flatfield
    Nederlands English Deutsch
    Verzending Meer
    Review schrijvenGratis verzending vanaf 250 euro!
    Winkelwagen Meer
    Uw winkelwagen
    is leeg
    Informatie over de fabrikant
    William Optics
    William Optics Website
    Andere artikelen
    Notificaties Meer
    NotificatiesHoud mij op de hoogte van updates voor William Optics WO- Star 71mm F 4,9 Five elements flatfield
    Aanbiedingen Meer
    Sky-Watcher SWA-70 (2") 22mm eyepiece
    Sky-Watcher SWA-70 (2") 22mm eyepiece
    135,00 EUR
    131,00 EUR
    Bekijk alle aanbiedingen
    Beoordelingen Meer
    Review schrijvenSchrijf een beoordeling over dit artikel!
    Handleidingen Meer
    Review schrijvenOp zoek naar William Optics handleidingen? Raadpleeg ons archief met handleidingen!
    telescoop sterrenkijker winkel  telescopen sterrenkijkers kopen

    Copyright © 2017 Robtics