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Next Stargazing June 17th
Next Stargazing June 17th

William Optics Zenithstar 73 III APO - Red


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The Zenithstar 73 is a Two Element Designed APO refractor. Using FPL-53 glass this telescope provides excellent aberration correction.


2.5" R&P focuser - smooth, stable and reliable, no image shifting
CNC Handle Bar - carry handle and guide scope mounting
Built in Clear Bahtinov Mask


Focal Length: 430mm
Diameter: 73mm
Aperture: f/5.9
Camera Format: APS-C, Full Frame
Focuser: 2.5" R&P focuser
Image Circle: > Full Frame
Recommended Flattener: Flat73
Tube Length: 330mm (Fully Retracted) / 420mm (Fully Extended)
Tube Weight: 2.83 kg (6.23 lbs)