William Optics ZenithStar 80mm f/6.8 ED Apo Refractor with DDG Integration
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Product Details
New Improved ZenithStar 80mm DOUBLET APO with NEW Digital Display Gauge (DDG)
This is an air spaced f/6.8 refractor, with a new robust 1:10 microfocuser, DDG and soft carry bag all included in the price. This telescope features William Optics' Digital Display Gauge (DDG) Focuser - a first for telescopes! We are proud to present this innovative device, the first ever seen on an astronomy telescope. The Digital Display Gauge - DDG - allows you to take precise focusing reading down to two digits (mm) number instantly.
The newest ZenithStar II generation Doublet APO is an 80mm ED refractor that is ideal for anyone 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 scope boasts premium Japanese Ohara ED Glass and is Fully Multi-Coated for excellent sharpness and color correction at Apochromat levels.
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 | 2in 360° Rotating Camera-angle Adjuster 1:10 fine focus Focuser Travel Length 3.15in (80mm) 1.25in Adapter Included |
1.25" Adapter | Brass Compression Rings |
L- type Mount | L-Bracket Base. Perfect with Vixen standard mount plate |
Field Stops | 10 Baffles |
Tube Diameter | 90mm |
Tube Length | 16.9in (430mm) Fully Retracted 19.7in (500mm) Fully Extended |
Tube Weight | 6.2 lbs (2.8 kg) |
Case | Soft Case Included |
Carry Bag Dimensions (WxHxD) | 20.5in x 11.4in x 7.1in (52cm x 29cm x 18cm) (Water Resistant) |