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Click on Images to Zoom  William Optics ZenithStar II 80 DDG Doublet APO Refractor Telescope [A-Z80II-DDG] Retail Price: $831.00 CDN Sale Price: $727.00 CDN YOU SAVE: $104.00 CDN 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... Aperture: 80mm 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 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.