Celestron Homepage

Celestron Facebook Page
Celestron Twitter Feed
Celestron YouTube Channel
Celestron Blog RSS Feed
» Support Center » Knowledgebase » NexStar GT and GTL FAQs » How do I remove the black cardboard cover from the end of the optical tube?
 How do I remove the black cardboard cover from the end of the optical tube?
Answer This cover does not get removed. This piece is actually a light baffle which prevents stray light from entering the back of the optical tube from behind the mirror. Removing this can allow the stray light to enter the tube and wash out your image.

The main lens cap is removed from the opposite end of the tube, the side nearest the focuser and StarPointer finderscope. The light from your target travels through this opening, bounces off the mirror at the bottom of the tube, and goes back up the tube to strike the secondary mirror, where it is redirected out the side of the tube to the eyepiece.

Article Details
Article ID: 1727
Created On: Feb 21 2005 08:00 AM

 This answer was helpful  This answer was not helpful


Repair/RMA Procedure

 Search
 Login [Lost Password] 
Email:
Password:
Remember Me:
 
 Article Options
 Print Article
 PDF Version
 Email Article
 Add to Favorites
An award-winning legacy brand for over 50 years, Celestron has grown to become the world's leading telescope maker, and enjoys brand-name recognition among serious amateur astronomers for superior optics, outstanding design, and innovative technology. Celestron also develops a wide range of exciting products and technologies that enhance the science, outdoor and educational markets. At Celestron, we strive to inspire a sense of wonder, knowledge and fun in our customers and throughout our company.

© 2012 Celestron, LLC. All Rights Reserved.
Website content is subject to change without notice

ALL CELESTRON PRODUCTS ARE DESIGNED AND INTENDED FOR THOSE 14 YEARS OF AGE AND OLDER.

Site designed and hosted by: GammaFX, Inc. Design Studio

Catalogs

Select Store:

Links



Network Sites