William Optics ZenithStar 66mm SD APO Refractor– Pre-Owned
The William Optics ZenithStar 66mm SD is a compact, high-quality apochromatic refractor designed for wide-field astrophotography and visual observing. Featuring a 66mm fully multi-coated SD doublet objective and a fast f/5.9 focal ratio, this telescope delivers sharp, high-contrast views in a lightweight and portable package.
The ZenithStar 66 SD features a smooth dual-speed 1:10 Crayford focuser with a 360-degree rotatable design for precise focusing and convenient camera positioning. Its retractable dew shield and compact optical tube make it an excellent portable imaging telescope or travel refractor.
Specifications
Aperture: 66mm
Focal Length: 388mm
Focal Ratio: f/5.9
Optical Design: Air-spaced SD doublet APO refractor
Optical Coatings: Fully multi-coated
Focuser: 1.6" dual-speed Crayford with 1:10 fine adjustment
Focuser Rotation: 360°
Dew Shield: Retractable
Optical Tube Weight: Approximately 3.5 lbs
Included Accessories
William Optics ZenithStar 66mm SD optical tube
Condition
Pre-owned telescope, excellent condition. Please refer to product photos for cosmetic condition and included accessories.
An excellent compact refractor for imaging large nebulae, star fields, and other wide-field deep-sky targets.





