Zenithstar 73 III APO

The ultra-fine William Zenithstar 73 apo lens telescope is the crown jewel of apo tubes. The two-element objective lens is top quality FPL 53 glass with a very low coefficient of dispersion.

Optically unbeatable

• Doublet Air-Mounted Lens (FPL-53 Glass)
• Very sharp image with good color correction
• Each lens is multi-coated (SMT coated) on all surfaces
• Great for astrophotography

The 2.5 "R&P Focuser

• Extremely smooth 360-degree rotating 2.5 "R&P focus 1:10 two-speed: Excellent for your star photography. No image movement!
• Focus can be locked with two locking screws
• Large aluminum knob with temperature gauge

Patented design

• The stainless steel tube is well suited for even heavy imaging equipment
• Fine adjustment for camera position

Finishing appearance

• High-quality and stylish appearance: Retractable frost protection, frost protection, white tube color and CNC-turned aluminum
• The best possible surface treatment
• Very light for travel, soft carry case included!

We recommend WO focal reducer/field flattener 0.8x!

Delivery contents

• Zenithstar 73 refractor OTA
  
• Mounting Rings
• CNC Carry Handle Bar
• Dovetail Plate
• 2.5” R&P Focuser
• Innovative Bahtinov Mask Cover (Patented)
• Soft Carry Case