Brand New - William Optics Star 71 II f/4.9 4-Element Refractor --- REDUCED ---
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I have this brand new William Optics Star 71 II f/4.9 4-Element Refractor from 2016 that I only opened the box to take pictures so it's never used. Please see pics. Retail price is $1,148. What you see in the pics is what you get.
Description from the manufacturer website.
The Original Star 71 featured a five-element design that included one FPL-53 ED glass lens. This new Star-71 II has a simplified four-element design that includes two FPL-53 ED glass lenses. Two ED Glass elements provide a high level of colour correction and the 4-element design is easier to collimate during manufacture, it should also hold it’s collimation better than the previous model.
With it's fast f4.9 focal-ratio and fully corrected 30mm (APS-C) imaging circle the Star-71 II is an excellent choice for astrophotography (it does not require a separate reducer/flattener).
The 2.5" Dual Speed Rack and Pinion Focuser's drawtube terminates in a male M48x0.75 thread and a wide M48 female threaded Canon EOS adapter ring is included. (Similar rings are available for other camera brands).
KEY FEATURES
- 71mm f/4.9 Imaging Refractor Telescope.
- 4-element design with two FPL-53 ED glass elements for enhanced colour correction.
- Does not require not a flattener/reducer.
- 30mm (APS-C) imaging circle.
- 2.5" dual speed R&P focuser.
- Includes tube-rings and Vixen style dovetail.
- Total weight: 2.4 kg / 5.3 lbs .
- Focuser drawtube travel = 1.38" / 35mm.
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