Relative Brightness
·
Home
·
View Cart
·
Wish List
·
Order History
·
Account Information
How to pick a telescope
|
Telescopes
|
Accessories
|
New Products
|
Used & Demo / Special Sales
|
Binoculars & Spotting Scopes
|
Starting out right
|
Juggling Ps
|
Why buy a refractor?
|
Why buy a reflector?
|
Why buy a catadioptric?
|
Terms
|
FAQs
Quick Search
·
$10 - $50
·
$50 - $100
·
$100 - $500
·
$500 - $1000
·
$1000 - $2500
·
Advanced Search
·
Telescope Search
·
Top 15 Keyword Searches
·
Browse Manufacturers
·
Edit Search Preferences
Sign-in
New user
Join our mailing list
If You Find a Lower Price....
christophers, ltd.
First Telescope
Meade Dealer
Celestron Dealer
Information Library
Instruction Manuals
Current Print Ads
Instructional Videos
Astronomical Terms
Warranty Information
Contact Information
Orders:
800-422-7876
Questions:
405-364-0858
24-Hour Fax:
405-447-3337
Email & Mailing Information
How to pick a telescope
/
Terms
/
Relative Brightness
Relative Brightness
A number used to compare the brightness of binoculars or spotting scopes of similar magnification. The relative brightness is determined by squaring the diameter of the exit pupil. The larger the relative brightness number, the brighter the image.
Home
|
How to pick a telescope
|
Telescopes
|
Accessories
|
New Products
|
Used & Demo / Special Sales
|
Binoculars & Spotting Scopes
|
Link Support
Terms of Sale
|
PRIVACY POLICY 7/1/2004
|
Fine Print
Toll-Free Telephone Astronomics: 800-422-7876; Christophers, Ltd.: 800-356-6603
Alternate Telephone: 405-364-0858 24 Hour Fax Line: 405-447-3337
Telephone Hours: Monday-Friday 8 AM - 9 PM CST
Saturday Noon - 5 PM CST
Store Hours: Monday-Friday 9 AM - 5 PM CST
Saturday Noon - 5 PM CST
Astronomics / Christophers, Ltd.
680 S.W. 24th Ave.
Norman, OK, 73069
© 2008 by Ad-Libs Advertising, Inc. All rights reserved
