Orion 90 instruction manual Specifications, Suggested Accessories

you can apply some white auto touch-up paint to the scratch. Smudges on the tube can be wiped off with standard household cleaners such as Windex or Formula 409.

Any quality optical lens tissue and cleaning fluid specifically designed for multi-coated optics can be used to clean the telescope’s objective lens as well as the lenses of the eyepieces and finder scope. Never use regular glass cleaner or cleaning fluid designed for eyeglasses. Before cleaning with fluid and tissue, however, blow any loose parti- cles off the lens with a blower bulb or compressed air, or lightly brush the lens with a soft camel hair brush. 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 fin- gerprints 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.

Do not disassemble the telescope, eyepieces, or other optical components included with the telescope for any reason, or your

warranty will be void! Cleaning of inaccessible optical surfaces should be performed by experienced opticians. Call Orion for information.

Specifications

Objective lens: 90mm aperture, achromatic air-spaced doublet, fully antireflection coated

Focal length: 500mm

Focal ratio: f/5.6

Weight of optical tube assembly: 5 lbs.

Mounting provision: 1/4"-20 threaded mounting block

Finder scope: 6x magnification, 30mm aperture, achromatic, crosshairs

Eyepiece: 26mm (19x) Plössl, 1.25" barrel diameter, fully coated

Diagonal: 90° star diagonal, mirror-type, 1.25" barrel diameter

Suggested Accessories

Full descriptions of the following accessories are available in the Orion print catalog or online catalog (www.telescope.com).

•Paragon HD-F2 Tripod (#5370): Portable yet sturdy camera tri- pod.

•AZ-3 Altazimuth Mount (#9018): Telescope mount with dual slow- motion controls.

•1/4"-20 Adapter for AZ-3 Mount (#10100): Couples telescope to mount.

•SkyView Deluxe Equatorial Mount (#9400): Excellent mount for astronomical use.

•1/4"-20 Adapter for SkyView Deluxe Mount (#3800): Needed to use SVD Mount.

•AccuTrack SVD DC Motor Drive (#7825): Provides hands-free tracking for the SVD Mount.

•45° Correct-Image Diagonal (#8790): Gives a correctly oriented image; recommended for terrestrial use.

•RedBeam LED Flashlight (#5744): Preserves dark-adapted night vision.

•DeepMap 600 (#4150): Great pocket reference featuring the 600 best celestial objects to view.

•Moon Filter (#5662): Reduces lunar glare, bringing out more sur- face detail.

•T-ring: Camera model specific. Required for through-the-tele- scope photography. Call for assistance.

•Universal Camera Adapter (1.25") (#5264): Required for through- the-telescope photography.

•Soft Case for ShortTube 90 (#15166): Protects the telescope for transporting.

•Sirius Plössl 1.25" Eyepieces: Recommended eyepieces for addi- tional magnifications.

•Shorty 2x Barlow (1.25") (#8711): Doubles the magnification of any eyepiece.

•6-Piece Optics Cleaning Kit (#5825): Everything you need to keep optics sparkling.

•Starter Set of Four 1.25" Color Filters (#5514): Helps bring out subtle detail in planets.

•Solar Filter for ShortTube 90 (#7730): Required for safe viewing of the Sun.

One-Year

Limited Warranty

The Orion ShortTube™ 90mm Refractor is warrant- ed against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail pur- chaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instrument that proves to be defective, provided it is returned postage paid to: Orion Warranty Repair, 89 Hangar Way, Watsonville, CA 95076. Proof of purchase (such as a copy of the original receipt) is required.

This warranty does not apply if, in Orion’s judgment, the instrument has been abused, mishandled, or mod- ified, nor does it apply to normal wear and tear. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. For further warranty service information, contact: Customer Service Department, Orion Telescopes & Binoculars, P. O. Box 1815, Santa Cruz, CA 95061; (800) 676-1343.

Orion Telescopes & Binoculars

Post Office Box 1815, Santa Cruz, CA 95061

Customer Support Help Line (800) 676-1343 • Day or Evening

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