Orion 90 - Manual (Page 4)

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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.
Orion Telescopes & Binoculars
Post Office Box 1815, Santa Cruz, CA 95061
Customer Support Help Line (800) 676-1343 • Day or Evening
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.