Meade 90AZ-ADRB instruction manual Taking Care of Your Telescope, Optional Accessories

Page 11

TAKING CARE OF YOUR TELESCOPE

Your telescope is a precision optical instrument designed for a lifetime of rewarding viewing. It will rarely, if ever, require factory servicing or maintenance. Follow these guidelines to keep your telescope in the best condition:

Avoid cleaning the telescope’s lenses. A little dust on the front surface of the telescope’s correcting lens will not cause loss of image quality.

When absolutely necessary, dust on the front lens should be removed with very gentle strokes of a camel hair brush or blown off with an ear syringe (available at most pharmacies).

Fingerprints and organic materials on the front lens may be removed with a solution of 3 parts distilled water to 1 part isopropyl alcohol. You may also add 1 drop of biodegradable dishwashing soap per pint of solution. Use soft, white facial tissues and make short, gentle strokes. Change tissues often.

CAUTION: Do not use scented or lotioned tissues or damage could result to the optics. DO NOT use a commercial photographic lens cleaner.

OPTIONAL ACCESSORIES

#928 45° Erecting Prism (1.25 O.D.): Correctly orients the telescopic image during terrestrial observing and yields an image position at a 45° angle to the main telescope tube, resulting in a more comfort-table observing position in most cases.

Additional Eyepieces (1.25" barrel diameter): For higher or lower magnifications with the telescopes that accommodate 1.25" eyepieces, Meade 4-element Series 4000 Super Plössl eyepieces yield wide fields of view with excellent edge-of-field corrections and are available in a range of focal lengths including 6.4, 9.7, 12.4, 15, 20, 26, 32, and 40mm.

#126 Barlow Lens: Doubles the magnification of your eyepieces. For example, if your eyepiece has 36 times magnification, a Barlow gives you a 72 times magnification. Place your Barlow into the eyepiece holder followed by your eyepiece.

Contact your Meade Dealer or see the Meade catalog for more information. Visit us on the web at: meade.com.

Looking at or near the Sun will cause irreversable damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.

– 11 –

Image 11
Contents Meade 90AZ-ADRB 90mm 3.5 Altazimuth Refracting Telescope Meade Limited Warranty Table of Contents Meade 90AZ-ADR Altazimuth Refracting Telescope Parts AssemblyIntroduction RED DOT Viewfinder Alignment Using the TelescopePage Some Observing Tips Page What do the specifications mean? SpecificationsTaking Care of Your Telescope Optional Accessories800