WILLIAM OPTICS ZENITHSTAR 73 III APO

Explore the Skies with William Optics ZenithStar 73 APO III

Step into a world of precision astronomy with the William Optics ZenithStar 73 APO III, the ultimate tool for avid sky watchers and astrophotographers. This advanced apochromatic refractor is engineered with a premium air-spaced doublet lens that incorporates Ohara FPL-53 ED glass to produce exceptionally clear and vivid images with minimal chromatic aberration.

Its compact and robust design, highlighted by a beautifully machined aluminum body and an elegantly anodized finish available in red and gold, ensures both durability and portability. Ideal for capturing stunning wide-field astronomical images and for portable visual astronomy, the ZenithStar 73 combines superior optical performance with ease of use. It includes high-quality accessories such as a CNC machined carry handle, a precision Bahtinov mask for easy focusing, and a protective soft case for travel.

Perfect for both beginners and seasoned astronomers, the William Optics ZenithStar 73 APO III stands out as a versatile and reliable choice for exploring the cosmos.

SPECIFICATION : 

• Lens Type: Doublet Apochromatic Prime Lens
• Focal Length: 430 mm
• Diameter: 73 mm
• Aperture: f/5.9
• Image Circle: 45 mm
• Focuser: 2″ Rack & Pinion (R&P) Focuser, compatible with EAF
• Optional Flattener:
  • FLAT 73A 1.0x
  • FLAT 73R 0.8x
• Adapters: N/A
• Lens Material: FPL-53
• Camera Format Compatibility: Full Frame and larger
• T-Mounts Supported:
  • Canon EF, RF
  • Nikon F, Z
  • Sony E
  • Pentax K
  • MFT (Micro Four Thirds)
  • FUJI X
• Tube Length: Adjustable, 330 mm – 420 mm
• OTA Weight: 2.83 kg (6.24 lbs)
• Total Weight: Not available

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