If you are anxious to use your DS Astro Telescope for the first time, before a thorough reading of this instruction manual, see the QUICK-START GUIDE on page 4.ĭS-2000EC users, see APPENDIX E, page 39, for information about your supplied Electronic Controller. Improperly installed batteries void your Meade warranty. If these precautions are not followed, batteries may explode, catch fire, or leak. Do not install batteries backward or mix new and used batteries. Follow battery manufacturer's precautions. Use care to install batteries as indicated by the battery compartment. In contrast, the reflecting telescope uses a concave mirror for this purpose. In the refracting telescope, light is collected by a 2-element objective lens and brought to a focus at F. In the Newtonian type of reflector, light is reflected by a small, flat secondary mirror to the side of the main tube for observation of the image. Reflecting Telescopes use a concave primary mirror to collect light and form an image. Meade refractors, in all models and apertures, include achromatic (2-element) objective lenses in order to reduce or virtually eliminate the false color (chromatic aberration) that results in the telescopic image when light passes through a lens. Refracting Telescopes use a large objective lens as their primary light-collecting element. Children should always have adult supervision while observing. Do not point the telescope at or near the Sun. Eye damage is often painless, so there is no warning to the observer that damage has occurred until it is too late. Looking at or near the Sun will cause instant and irreversible damage to your eye. Never use a Meade ® DS2000 ™ Telescope to look at the Sun!
0 kommentar(er)
