User manual ORION TELESCOPES & BINOCULARS STARGZER5PC B

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Manual abstract: user guide ORION TELESCOPES & BINOCULARS STARGZER5PC B

Detailed instructions for use are in the User's Guide.

[. . . ] Stargazer's 5 Piece Filter Set #5580 1. 25" Version #5592 2" Version Your new Orion Stargazer's 5-piece filter set will add versatility and viewing pleasure to your astronomy experience. This set contains a Moon filter, a SkyGlow Broadband light-pollution filter, a No. Please read these instructions thoroughly for proper use and care of the filters. 1. [. . . ] This brightness washes out subtle details of the lunar surface, and can also cause eyestrain and fatigue. A Moon filter solves this problem by reducing the amount of light (transmission: 13%) that gets to your eye without losing any important detail or making any color changes to the image. With the Moon filter in place, you can view lunar surface details such as maria, craters, mountains and rilles. 100 Transmission Characteristics of Orion Broadband Skyglow Filter Transmission (%) The Importance of Dark Adaptation Allowing your eyes to dark-adapt is the key to getting the most from your SkyGlow Broadband filter. Allow your eyes to darkadapt for about 20-30 minutes before you use the filter. Once the pupils in your eyes open 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. 80 60 20 Wavelength (nm) What You Will See The SkyGlow Broadband filter improves the contrast between sky and object but will not actually make the object brighter. Expect a very dark sky background and a somewhat dimmer but highercontrast image. The filters perform best on emission and planetary nebulas like the Orion and Owl nebulas in winter, and the Lagoon and Dumbell nebulas in summer. The SkyGlow filter improves the contrast of most objects, but has considerably less effect on galaxies and stars. 0 400 450 500 550 600 650 700 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. Box 1815, Santa Cruz, CA 95061 IN 202 Rev B 02/03 Oxygen III 40 Hydro-gen Beta Hydrogen Alpha 4. Color Filters The color filters will enhance your visual and photographic observation of the Moon and planets, allowing you to see greater contrast between planetary details of differing colors. How They Work Planetary surface details and atmospheric phenomena reflect sunlight as contrasting colors which we see as details on the disc of a planet. A color eyepiece filter absorbs a specific color of reflected light: for example, red. [. . . ] Then apply some cleaning fluid to a tissue, never directly on the optics. Wipe the glass gently in a circular motion, then remove any excess fluid with a fresh lens tissue. Use caution; rubbing too hard may scratch the glass. Color Filter Guide #80A Medium Blue 30% Transmission Enhances: · contrast of some comet tails · lunar surface detail (significantly) · Martian polar caps and high clouds · view of Venus and Mercury in orange twilight sky · orange and purple belts and white ovals of Jupiter · subtle shadings on Saturn #25 Red 14% Transmission Enhances: · Martian surface detail in larger scopes · contrast of Mercury against blue sky · contrast and cloud definition of Venus · bluish clouds of Saturn and Jupiter · contrast of Saturn's rings Post Office Box 1815, Santa Cruz, CA 95061 Customer Support Help Line (800) 676-1343 · Day or Evening Orion Telescopes & Binoculars [. . . ]

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