Currency: EUR

Zenithstar 73 III APO

Temporarily out of stock

William Optics

Zenithstar 73 III APO

979,00 €
Varies by model


Backorder. Estimated delivery time 3-18 days.

In stock

Product description

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 Focus

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!

Product details

Aperture73 mm
Focal RatioF/5.9
Focal Length430 mm
Imaging Circle43 mm
Objective TypeED Doublet, Air Spaced,
Fully Multi-Coated, SMC coating.
Lens ShadeRetractable
Tube Diameter93mm (3.66")
Tube Length390 mm Fully Retracted
Tube Weight2.83 kg

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

Shipping costs

PostNord Parcel locker
0,00 €
PostNord Home deliver
19,00 €
PickUp Parcel
0,00 €
Delivery time to EU 2-5 days. Pick up delivery
UPS Standard
14,90 €
Delivery to Europe in 2 to 5 days.
DHL Economy Select
14,90 €















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