Omni XLT series features the stable platform of the CG-4 mount and high quality optics. Using aspheric shaping technology in conjunction with hand-figuring the optics, the Omni XLT presents an image with virtually no spherical aberration. We also added our famous StarBright XLT coating system to further enhance light transmission. Features include: High quality optics start with each lens and (or) mirror being hand selected so only the finest grade of optical glass is used StarBright XLT coatings provide maximized light transmission 25mm multi-coated eyepiece – 20mm eye relief, 50-degree FOV CG-4 German equatorial mount with setting circles and slow motion controls – to accurately locate and track sky objects Ball bearings in both axis of the mount for smooth performance Heavy-duty pre-assembled stainless steel tripod featuring 1.75” legs, accessory tray and bubble level Easy no-tool setup The Sky Level 1 planetarium software with 10,000 object database and enhanced images About Celestron Reflector Telescopes A Newtonian reflector uses a single concave mirror as its primary. Light enters the tube traveling to the mirror at the back end. Light is then ”bent” forward in the tube to a single point, its focal plane. A flat mirror called a ”diagonal” intercepts the light and points it out the side of the tube at right angles to the tube through the eyepiece. The eyepiece is placed there for easy viewing. Newtonian Reflector telescopes replace heavy lenses with mirrors to collect and focus the light, providing much more light gathering power for the money. You can have focal lengths up to 1000 mm and still enjoy a telescope that is relatively compact and portable. Newtonian Reflector telescopes do require more care and maintenance because the primary mirror is exposed to air and dust.
Aspheric shaping for reduced aberration
StarBright XLT optical coatings
CG-4 German equatorial mount
Ball bearings in both axis of the mount
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Questo articolo: Celestron 31057 Omni XLT - 150$498.49