Specifications; Suggested Accessories - Orion Argonaut 150mm 9073 Instruction Manual

glass cleaner or cleaning fluid designed for eyeglasses. Always
apply the fluid to the tissue, never directly on the optics. After care-
fully cleaning the lens surface, gently wipe it with a dry tissue,
taking care not to rub too hard. Use lots of tissue on larger lenses
or if the lens surface has grease on it. If any tissue fibers remain
after wiping, use a blower bulb to blow them off. Repeat the entire
process if necessary. Don't take any lenses apart for cleaning!
With very little maintenance, your Argonaut 150mm Maksutov-
Cassegrain will provide years of outstanding viewing. Enjoy!

6. Specifications

Optical system design: Maksutov-Cassegrain
Primary mirror diameter: 150mm (5.91")
Primary mirror composition: Pyrex, aluminized and overcoated
Primary mirror focal length: 1800mm
Focal ratio: f/12
Meniscus lens: BK-7 glass, multi-coated on both sides
Size of central obstruction: 50mm
Finder scope: 7x35 achromatic, 8° field of view
Tube length: 17 inches
Weight: 9.6 lbs.
One-Year Limited Warranty
This Orion Argonaut 150mm Maksutov-Cassegrain is warranted against defects in materials or work-
manship for a period of one year from the date of purchase. This warranty is for the
benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars
will repair or replace, at Orion's option, any warranted instrument that proves to be defective, provid-
ed it is returned postage paid to: Orion Warranty Repair, 89 Hangar Way, Watsonville, CA 95076. If
the product is not registered, proof of purchase (such as a copy of the original invoice) is required.
This warranty does not apply if, in Orion's judgment, the instrument has been abused,
mishandled, or modified, nor does it apply to normal wear and tear. This warranty gives you spe-
cific 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.
Customer Support Help Line (800) 676-1343 • Day or Evening
Orion Telescopes & Binoculars
Post Office Box 1815, Santa Cruz, CA 95061

7. Suggested Accessories

2"-to-1.25" Step-Down Adapter (#8768)—Allows use of
1.25" diagonals.
Star Diagonal, 1.25" (#8778)—Required for use of 1.25" eyepieces.
Star Diagonal, 2" (#8773)—Required for use of 2" eyepieces.
45° Erect-Image Diagonal, 1.25" (#8790)—Recommended
for daytime use of 1.25" eyepieces.
Orion Ultrascopic 1.25" Eyepieces—High-quality oculars at
a reasonable price.
Orion Optiluxe 2" Eyepieces—Long-focal-length eyepieces
that excel for deep-sky viewing. Fully multi-coated.
Camera Adapter (#5269)—Allows attachment of camera to
2" focuser, for through-the-telescope photography.
FlexiShield Dew Cap (#4208)—Helps prevent dew formation
on telescope's front corrector lens.
Orion AccuTrack SVD Motor Drive (#7825)—For SkyView Deluxe
Equatorial Mount. Provides hands-free tracking for visual use.
Orion DeepMap 600 (#4150)—Handy star chart and reference guide.
Ultra Heavy Duty Bogen Tripod with Pan Head (#20709)—
Camera tripod recommended for terrestrial viewing.
Full-Aperture Glass Solar Filter (#7797)—Allows safe viewing
of the Sun.