User manual ORION TELESCOPES & BINOCULARS POLUTFILTR
DON'T FORGET : ALWAYS READ THE USER GUIDE BEFORE BUYING !!!
If this document matches the user guide, instructions manual or user manual, feature sets, schematics you are looking for, download it now. Diplodocs provides you a fast and easy access to the user manual ORION TELESCOPES & BINOCULARS POLUTFILTR. We hope that this ORION TELESCOPES & BINOCULARS POLUTFILTR user guide will be useful to you.
Manual abstract: user guide ORION TELESCOPES & BINOCULARS POLUTFILTR
Detailed instructions for use are in the User's Guide.
[. . . ] SkyGlow & UltraBlock Light-Pollution Filters
TM
TM
#5661 #5660 #5659 #5658 #5654 #5655 #5657 #5656
. 965" SkyGlow Broadband Filter 1. 25" SkyGlow Broadband Filter 2" SkyGlow Broadband Filter SkyGlow Broadband Filter for Schmidt-Cassegrains 1. 25" SkyGlow UltraBlock Filter . 965" SkyGlow UltraBlock Filter 2" SkyGlow UltraBlock Filter SkyGlow UltraBlock Filter for Schmidt-Cassegrains
The SkyGlow UltraBlock Filter is a Narrow Band Transmission Filter with very high (99. 9%) blocking of Mercury and Sodium emission pollution bands, and very high transmission of critical Hydrogen Beta and Ionized Oxygen. It is most useful in areas of extreme light pollution like cities and busy streets. [. . . ] You can also use the filters photographically by threading them into eyepieces used in tele extenders and universal camera adapters. Schmidt-Cassegrain models: Thread it onto the rear cell where you normally attach your visual back or T-adapter. The filter provides the same threads as the rear cell of your Schmidt-Cassegrain, so you can continue to use any of your standard accessories as before. The Importance of Dark Adaptation Allowing your eyes to dark-adapt is the key to getting the most from your SkyGlow filter. Allow your eyes to dark-adapt for about 20-30 minutes before you use the filter. Once the pupil in your eye opens up, you'll be able to take full advantage of the benefits of the filter. Remember, the instant you glance at a bright object like a street lamp or bright flashlight bulb, your eyes lose their dark adaptation. Set up in the "shadows" of buildings and other objects, or, better yet, use Astrogoggles. What You Will See These filters improve contrast between sky and object but will not actually make the object brighter. Expect a very dark sky background and a somewhat dimmer but high-contrast image. [. . . ] Keep the filter in its protective storage box when you are not using it. If the glass surface accumulates oily dirt, use lens cleaning fluid and tissue as instructed in their package directions.
100 Transmission Characteristics of Orion Broadband Skyglow Filter
80
20
Wavelength (nm)
0 100
Oxygen III
40
Hydro-gen Beta
400
450
500
550
600
650
Hydrogen Alpha
700
80
Transmission (%)
Transmission Characteristics of Orion Narrowband UltraBlock Filter
60
20
Wavelength (nm)
0
Oxygen III
40
Hydro-gen Beta
400
450
500
550
600
650
Hydrogen Alpha
700
Common Light Pollution Emissions
q q q vs q q qv
q Mercury Street Lights, s Sodium Street Lights, v Ionized Oxygen Skyglow
Customer Support (800) 676-1343 Email: support@telescope. com
Providing Exceptional Consumer Optical Products Since 1975
Corporate Offices (831) 763-7000 P. O. [. . . ]
DISCLAIMER TO DOWNLOAD THE USER GUIDE ORION TELESCOPES & BINOCULARS POLUTFILTR
Click on "Download the user Manual" at the end of this Contract if you accept its terms, the downloading of the manual ORION TELESCOPES & BINOCULARS POLUTFILTR will begin.