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William Optics

WO Star 71 APO Refractor (A-WO71II)


  • 1,19800

This item is out of stock but you can place an order now and we’ll ship when it becomes available.


Overview

  • 71mm f/4.9 Imaging Refractor Telescope.
  • FPL-53 glass for color free apochromatic performance.
  • 4 elements in 3 groups (2-1-1- 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 = 4.19 lbs / 1.9 kg (OTA only); 4.85 lbs / 2.2 kg (OTA with rings and dovetail).
  • Focuser drawtube travel = 2.5" / 35mm.

 

Description

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.

Focuser drawtube terminates in a male M48 thread. Telescope does not come 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 M63 female thread on the telescope's focuser tube; you cannot use standard 1.25" diagonals. Telescope cannot reach focus with larger 2" diagonals.

 

Specifications

 

Aperture

71mm

Focal Ratio

F/4.9

Focal Length

350.2 mm

Objective Type

4 elements in 3 groups (2-1-1- configuration; new, unique, patented design)

Lens Shade

Retractable

R&P Focuser

2.5" dual speed R&P focuser 
Focuser drawtube travel = 2.5" / 35mm

   

Type of Mount

Includes mounting rings and Vixen style dovetail

Tube Weight

Weight = 4.19 lbs / 1.9 kg (OTA only); 4.85 lbs / 2.2 kg (OTA with rings and dovetail)


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