William Optics ZenithStar 61II Doublet f/5.9

Zenithstar 61 APO Photo Performance by Jerry Huang

Technical Specifications

Focal Length: 360mm
Aperture: 61mm
Focal Ratio: f/5.9
Focuser: 2" Rack & Pinion Focuser
Image Circle: > Full Frame
OTA Length (Fully Retracted): 230mm
OTA Length (Fully Extended): 300mm
OTA Weight: 2.2 lb. (1.45 kg)

Diagrams:

In the Box

• William Optics ZenithStar 61II
• Bahtinov Mask
  
• CAT saddle handle bar
  
• M54 to 2" and 2" to 1.25" adapters
  
• 210 mm dovetail plate
  
• Soft carry case

Warranty & Manuals

William Optics 2-Year Warranty

William Optics F.A.Q

ZenithStar 61 User Manual