Orion 9884 instruction manual Care and Maintenance, Specifications, Cleaning Lenses

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10. Care and Maintenance

If you give your telescope reasonable care, it will last a life- time. Store it in a clean, dry, dust-free place, safe from rapid changes in temperature and humidity. Do not store the tele- scope outdoors, although storage in a garage or shed is OK. Small components like eyepieces and other accessories should be kept in a protective box or storage case. Keep the dust cover on the front of the telescope when not in use.

Your SkyView Pro 80mm ED EQ requires very little mechanical maintenance. The optical tube is aluminum and has a smooth painted finish that is fairly scratch-resistant. If a scratch does appear on the tube, it will not harm the telescope. Smudges on the tube can be wiped off with a soft cloth and a household surface cleaner.

Cleaning Lenses

Any quality optical lens cleaning tissue and optical lens clean- ing fluid specifically designed for multi-coated optics can be used to clean the exposed lenses of your telescope’s objec- tive lens, eyepieces, or finder scope. Never use regular glass cleaner or cleaning fluid designed for eyeglasses. Before cleaning with fluid and tissue, blow any loose particles off the lens with a blower bulb or compressed air. Then apply some cleaning fluid to a tissue, never directly on the optics. Wipe the lens gently in a circular motion, then remove any excess fluid with a fresh lens tissue. Oily fingerprints and smudges may be removed using this method. Use caution; rubbing too hard may scratch the lens. On larger lenses, clean only a small area at a time, using a fresh lens tissue on each area. Never reuse tissues.

11. Specifications

Objective lens: Apochromatic, rear element made of ED glass, air-spaced

Objective lens coating: Fully multi-coated

Objective lens diameter: 80mm (3.1")

Focal Length: 600mm

Focal Ratio: f/7.5

Optical tube: Seamless aluminum

Lens cell: Machined aluminum

Focuser: Crayford, accepts 1.25" or 2" accessories and camera T-ring (with adapter)

Eyepieces: 25mm and 10mm Sirius Plössls, fully coated with multi-coatings, 1.25", accept Orion filters

Magnification: 24x (with 25mm) and 60x (with 10mm)

Finder Scope: 8x40 Achromatic, 5.33° field of view, crosshairs

Diagonal: 2" Star diagonal, mirror type, includes 1.25" adapter

1/4"-20 Mounting block: Allows direct attachment of telescope to camera tripod

Mount: SkyView Pro, German equatorial

Counterweight: 7.5 lbs

Tripod legs: Steel

Tripod support tray: Aluminum, provides additional stability, holds five 1.25" eyepiece and two 2" eyepieces

Weight: 36 lbs. (Mount 30 lbs., optical tube 6 lbs.)

Polar axis latitude adjustment: 8° to 70°

Polar axis finder: Optional

Motor Drives: Optional

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Contents Orion Latitude adjustment Bolts Tripod support tray Parts List Table of ContentsAssembly UnpackingInstalling the Finder Scope Inserting the Diagonal and Eyepiece Balancing the TelescopeViewing with Eyeglasses Using Your TelescopeFocusing the Telescope Aligning the Finder Scope Focusing the Finder ScopeMagnification & Eyepieces 600 mm = 25 mmPolar Alignment Setting Up and Using the Equatorial MountOptional polar axis finder scope Polar Alignment Using an Optional Polar Axis Finder ScopeTracking Celestial Objects Calibrating the Declination Setting Circle Understanding the Setting CirclesCalibrating the Right Ascension Setting Circle Finding Objects With the Setting CirclesConfused About Pointing the Telescope? Astronomical ObservingSite Selection Seeing and TransparencyLet Your Eyes Dark-Adapt Cooling the TelescopeEyepiece Selection Astronomical ObjectsSun How to Find Deep-sky Objects StarhoppingPlanets StarsAstrophotography Terrestrial ObservingPiggyback Photography Moon PhotographyPlanetary Photography Cleaning Lenses Care and MaintenanceSpecifications One-Year Limited Warranty