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ZenithStar II 80 DDG Doublet APO Refractor Telescope [A-Z80II-DDG]
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About the William Optics ZenithStar 80 DDG Doublet APO Refractor Telescope...
This is an air spaced f/6.8 refractor, with new robust 1:10 microfocuser, DDG - Digital Display Gauge included in the price.
The newest William Optics 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.
The William Optics ZenithStar II boasts premium Japanese Ohara ED Glass and Fully Multi-Coating for an excellent sharpness and color correction at Apochromats level.
William Optics ZenithStar 80 DDG Doublet APO Refractor Telescope Features...
Doublet ED, using premium Japanese Ohara FPL-51 Japanese glass, air spaced, in CNC machined ultra high precision lens cell.
Fully baffled to block all extraneous off-axis light rays and prevent glancing reflections, increasing overall contrast.
Superior anodizing will not only give you a beautiful telescope, but also protect it by making the surface much harder than natural aluminum.
Brass Compression rings on the adapter: will not ruin your precious eyepieces!
Super-smooth and reliable 1:10 micro focuser for fine focusing during astrophotography or visual observations alike.
William Optics ZenithStar 80 DDG Doublet APO Refractor Telescope Specifications...
Focal Ratio: F/6.8
Focal Length: 545 mm
Objective Type: FPL-51 ED Glass, Doublet, Air Spaced, APO
Coatings: Fully Multi-Coated
Resolving Power: 1.45"
Limiting Magnitude: 11.3
Lens Shade: Retractable
Focuser: 2" 360 degree Rotating Camera-angle Adjuster, 1:10 fine focus
Focuser Travel Length: 3.15" (80mm)
1.25" Adapter: Brass Compression Rings
L- type Mount L Bracket Based: Perfect with Vixen standard mount plate
Field Stops: 10 Baffles
Tube Diameter: 90mm
Tube Length 16.9" (430mm) Fully Retracted - 19.7" (500mm) Fully Extended
William Optics Product Number: A-Z80II-DDG
Customer Note: We also have optional ring sets available with dovetail bars, if you wish to mount this instrument on your telescope system or optical tube assembly.