But anyone with the slightest technical bent will have no problem getting familiar with these models. Intermediate Level - These scopes offer higher performance and more advanced features than Level 1: Beginner models. An Orion 12-volt power pack is standard for field operation. You can literally go where no man or woman has gone before. One person set up, one handed guiding, one incredible observing machine. Some are easy to use but are on the large or heavy side. And when you're stargazing, Orion's telescope cases and covers, observing gear, red LED flashlights, astronomy books and star charts will make your observing sessions more convenient, comfortable and meaningful. The top cage is aluminum with carbon graphite spacers between the top and bottom rings. Ordering Information: Standard mirrors are made from material such as Soda-Lime Plate glass and BK-7 glass. Only one element of the optical system ? 36-point flotation primary mirror cell with collimation adjustments The customer is also responsible for arranging for needed material handling equipment at the delivery site (for example, the crated 50" mirror will weigh about 500 lbs ? A motor drive automatically moves the telescope in right ascension at the same rate as the east-west drift of the stars so stars can be continuously tracked in the eyepiece without manual adjustment. We offer binoculars for every viewing interest, including astronomical binoculars, compact binoculars, waterproof binoculars, birding binoculars, and sport and hunting binoculars. Now an employee-owned company, we pride ourselves on an unswerving commitment to best quality products, value and unmatched customer care. Orion binoculars are known for quality optics at a great price. 5 cooling accelerator fans located in mirror box It is not intended to remove or restrict your other legal rights under applicable local consumer law; your state or national statutory consumer rights governing the sale of consumer goods remain fully applicable. That?s almost double the light the Orion 36" Dob will capture; four times what a 25" telescope can collect, or 16 times what a 12.5" gathers! It is equipped with a set of Astrodon astrophotography filters as well as Sloan photometry filters and it's therefore an excellent choice for both scientific applications and astrophotography of deep sky objects. Motor drives are usually equipped with a hand control that allows the telescope's tracking speed to be slightly increased or decreased, which is particularly critical when taking long-exposure astro-images. You supply the wonder and awe you?ll feel when you see the universe in a way nobody else can! The Orion 50" Dob is the bigger brother of the Orion 36 and 40 inch Monster Dobsonians and is the biggest amateur telescope in the world. We know of three 48" scopes used by amateurs to explore the night sky. At Orion we?ve known that bigger is better and have wanted to take the art of Dobsonian telescope making to new limits. of service, the 50 inch telescope has surpassed our expectations with Don?t point a Monster Dob at the sun! figure was destroyed and had to be completely re-ground a second time Glass with Pyrex or other low thermal expansion material will not change shape as dramatically during the cool-down period, resulting in more stable images during this period. Apr 2, 2014 - 50 Inch Telescope at Mount Stromlo Observatory The astro-photographic capability of the telescope is based on the style, stability, and accuracy of the mount and tripod. width: 200, by Mike Lockwood. so you'll continue to be the first May 19, 2016 - 50 Inch Telescope at Mount Stromlo Observatory You can view this category of porudcts by clicking on the product image or the button below. Argo-Navis(TM)* electronic setting circles with over 29,000 astronomical objects in the on-board database Advanced Level - These scopes provide the best performance but may require more skill to master and appreciate. 6 carbon graphite collapsible truss tubes with Moonlite(TM)* truss-tube connections Because we sell direct, we can offer you tremendous value at a great price. Orion 50 f/3.75 Truss-Tube GoTo Dobsonian Telescope w/parabolic primary mirror made of low-expansion borosilicate glass The theoretical resolving power of a telescope can be calculated with the following formula: Resolving power (in arc seconds) = 4.56 divided by aperture of telescope (in inches). {"closeOnBackgroundClick":true,"bindings":{"bind0":{"fn":"function(){$.fnProxy(arguments,\'#headerOverlay\',OverlayWidget.show,\'OverlayWidget.show\');}","type":"quicklookselected","element":".ql-thumbnail .Quicklook .trigger"}},"effectOnShowSpeed":"1200","dragByBody":false,"dragByHandle":true,"effectOnHide":"fade","effectOnShow":"fade","cssSelector":"ql-thumbnail","effectOnHideSpeed":"1200","allowOffScreenOverlay":false,"effectOnShowOptions":"{}","effectOnHideOptions":"{}","widgetClass":"OverlayWidget","captureClicks":true,"onScreenPadding":10}, {"ensembleSEOTranslationTypes":"ensemble","widgetClass":"BreadcrumbWidget","productSEOTranslationTypes":"product","categorySEOTranslationTypes":"category|section,category,thumbnail","delimText":"","catalogSEOTranslationTypes":"catalog","showCatalog":false}, { Orion Dynamo Pro 12V Rechargable Power Station Reflector telescopes use a pair of large and small mirrors to direct incoming light to the eyepiece. For telescopes, the optical diameter (also known as aperture) is the size of a telescope's main light-collecting lens or primary mirror, measured in millimeters or inches. So the larger the telescope's aperture, the more it is capable of resolving. Our 100% satisfaction guarantee says it all. layers: '' The drive and navigation system will interface with most popular planetarium programs on your PC to give you robotic control over your night?s observing. For binoculars, the optical diameter (also known as objective lens diameter) is the size of each of the front-facing objective lenses of a binocular measured in millimeters. mirror blank was supplied by Peter Wangsness and the optical work was "Diffraction Limited" means that the limits of image detail are determined by the physical properties of light, and not by optical defects in the telescope. Binoculars with larger objective lenses collect more light, which increases image resolution and brightness. Ports allow the mount to connect to devices such as autoguiders (for long exposure photography without tedious manual guiding), PC's running planetarium software (via the RS-232 port) and GPS receivers (through the Aux port). The side bearings, rocker box and ground board are constructed of an engineered composite of Russian birch with aircraft-grade aluminum epoxy bonded to both sides of the birch core, making exceptionally strong but surprisingly light structural components. Das Newton-Teleskop (nach Sir Isaak Newton 1643-1727) hat eine weitreichende Verbreitung bei den früheren Astronomen gefunden und ist noch heutzutage bei den Amateuren sehr beliebt. In the first 30 days Just pointing this at the sun can instantly damage eyepieces and cause irreversible eye damage and burns. With a limiting stellar magnitude that is approximately +17.4 and a theoretical resolving power under a tenth of an arc second (seeing conditions limited, of course) you are going to be catching details in the ?faint-fuzzies?