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Unfortunately William Optics ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal ZS80-ED-125DI is no longer carried by OpticsPlanet. You can also explore other items in the Telescopes category yourself to try and find the perfect replacement for you!

William Optics ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal ZS80-ED-125DI Product Info

William Optics ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal ZS80-ED-125DI on sale and available from our online store. OpticsPlanet, Inc imageis an Authorized US Distributor for William Optics Telescopes.

ZenithStar 80mm II ED APO. Doublet. F/6.8, 545mm comes with L-Based bracket, and Custom Aluminum Case. (Package Includes 1.25" Dielectric Diagonal).

Specifications of William Optics ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal ZS80-ED-125DI:

Aperture 80mm
Focal Ratio F/6.8
Focal Length 545mm
Objective Type

FPL-51 ED Glass, Doublet, Air Spaced, APO

Fully Multi-Coated

Resolving Power 1.45"
Limiting Magnitude 11.3
Lens Shade Retractable
Focuser 2" 360° Rotating Camera-angle Adjuster, 1:10 fine focus

Focuser Travel Length 3.15" (80mm)

1.25" Adapter

1.25" Adapter Brass Compression Rings
L- type Mount L Bracket Based
Field Stops 10 Baffles
Tube Diameter 90mm
Tube Length 16.9" (430mm) Fully Retracted

19.7" (500mm) Fully Extended

Tube Weight  
Case Aluminium Case (Standard)
Case Dimensions

(WxHxD)

22.4" x 12.6" x 8.3"

(57cm x 32cm x 21cm)

(Water Resistant)

Case Weight  
· Chromatic Aberration Graph
· Spot Diagram

Features of William Optics ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal ZS80-ED-125DI:

The newest ZenithStar II generation Doublet APO is a 80mm ED refractor ideal for everyone who needs an excellent back-up scope/ guiding scope at an excellent price, or a great first APO refractor, which you can use for planetary work, wide-field imaging, and crisp, high power observations...

Lens Design

• Doublet ED, using premimum Ohara FPL-51 Japanese glass, air spaced, in CNC machined ultra high precision lens cell.

• Each lens is Fully Multi-Coated with best in classanti-reflective coatings.

Low C.A.

• Fully baffled to block all extraneous off-axis light rays and prevent glancing reflections, increasing overall contrast.

• 80 mm clear aperture.

Nothing Left to Chance

• Fully CNC machined production, no plastic part used.

• Drawtube travel length 80 mm, with precision graduated scale.

• 1.25” adapter included.

• Brass Compression rings on the adapter: will not ruin your precious eyepieces!

Super Portable

• Retractable dewshield, for enhanced transportability.

• Only 2.8 kg. Perfect for piggybacking as guide scope.

• Optional rings, guiding rings and 0.8x field flattener/reducer are available!

Beautiful Anodizing

• Superior anodizing will not only give you a beautiful telescope, but also protect it by making the surface much harder than natural aluminum.

• Elegant blue finish, stylish like a designer product! It is particularly suited to be paired to SCTs as a guiding scope.

Wonderful WO Microfocuser

• William Optics 360-degree rotatable Crayford focuser, smooth and precise.

• Adjustable focuser tension.

• Super-smooth and reliable 1:10 micro focuser for fine focusing during astrophotography or visual observations alike.

Attention to Packaging

• Exclusive Aluminum carrying case included in the price.

• Water resistant case.

• Carry-on size: you do not have to leave your treasure home!

• Two-year, no fuss warranty and constant customer service!

Package Contents:

  • ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal

William Optics ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal ZS80-ED-125DI Related Products

William Optics ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal ZS80-ED-125DI Unorderable Models

William Optics ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal ZS80-ED-125DI, MPN: ZS80-ED-125DI, Code: WO-TS-ZS80-ED-125DI

William Optics ZenithStar 80mm II ED APO Doublet f/6.8 Refractor Telescope, Aluminum Case & 1.25" CF Dielectric Diagonal ZS80-ED-125DI Comments