William Optics Star 71mm APO f/4.9 Refractor Telescope w/ Rings and Dovetail
"This is the best imaging scope we ever built" says William Optics founder and CEO, William Yang, in describing this new apochromatic refractor.
In addition to utilizing the highest quality FPL-53 glass, four elements are configured in three groups- a unique, patented design- not the conventional objective/flattener/reducer design, that affords pinpoint stars from edge to edge covering a 45mm full frame imaging circle-- an astrophotographer's dream especially since this little jewel of a telescope includes a robust 2.5" dual speed rack and pinion focuser that even incorporates a temperature gauge. The drawtube terminates in male M48 thread to which a wide M48-Canon EOS adapter ring (included) can be attached.
This is not a conventional 2" focuser tube with locking thumbscrews. For those wishing to use this very portable telescope as a visual instrument, an optional 1.25" 90 degree dielectric mirror diagonal is available separately. The diagonal comes with a custom adapter that connects directly to the telescope. (Please note: standard 1.25" diagonals are not compatible with this scope which also will not reach focus with larger 2" diagonals.
The CNC-machined optical tube assembly, that weighs no more than six pounds, is finished in William Optics traditional pristine white with gold trim.
- Additional Information
SKU WO-A-STAR71-II Manufacturer William Optics Telescope Series William Optics Star Optical Design Refractor - Apochromatic Mount Type None - Optical Tube Only Warranty 1 Year Warranty Telescope Aperture 71mm Telescope Focal Length 350.2 mm Telescope Focal Ratio f/4.9 Tube Color or Finish Gloss White Dew Shield Included? Yes Finder Included None Focuser Size 2.5" Focuser Style Rack & Pinion Manual or Electronic Focusing? Manual Focusing Speeds Two-Speed Total Telescope Weight 6.2 pounds
- Included Items
- William Optics 71mm Star Refractor OTA
- Mounting Rings
- Vixen Style Dovetail
- M48 Canon EOS Adapter Ring
- Questions & Answers
Product QuestionsWilliam Optics Star 71-II f/4.9 APO.
Is it suitable to be used with a SBIG STL 11000.?
- Support / Downloads
- Related Blog Posts