orion newtonian telescope

layers: 'Artimg-Choose_Scope_Astronomy_square' that I could use to check for coma. entityId: 102125, Great Astronomy Products For Libraries & Teachers! }, { The 10" f/4 Newtonian Reflector Astrograph's 250mm (9.8") parabolic primary mirror is made of low-thermal-expansion BK7 glass, which is superior to standard soda-lime glass. I want as I tighten the mount's declination and right ascension locks. Once the planets are high in the sky and the scope has cooled You will never . and resolution. This recessed focuser position helps maximize contrast by blocking stray off-axis light for high-resolution performance. entityType: 'product' }, { I may also possibly replace the 4-vane spider with a curved Short focal ratios (f/5, f/4.5) produce wide fields of view and small image scales, while long focal lengths produce narrower fields of views and larger image scales. The Crab Nebula is easy sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=99809&isPDP=true', The included collimation cap is a great little Nine precisely positioned baffle rings along the inside of the reflector optical tube minimize internal reflections of pesky off-axis light for pristine imaging performance. than it is in my ED80, but it's still just a big, oblong, fuzzy blob. entityType: 'product' Im relatively new to the hobby, about a years worth of experience under my belt. The reflector's 6" aperture and fast focal ratio will amaze you with high-contrast views of the cosmos. Look, we get it. But anyone with the slightest technical bent will have no problem getting familiar with these models. width: 200, Gift & Book Store; The 200-inch (5.1-meter) Hale Telescope. Field Flattener/reducer needed for f/4 newtonian? - Cloudy Nights The super-steady linear-bearing Crayford focuser design will hold heavy imaging payloads without slippage. Orion StarBlast II 4.5 Equatorial Reflector Telescope to my fellow SRFs! Manufacturer's warranty period, if known. I'm a big fan of Orion telescopes, so I was familiar with their sourceSelector:'' height: 160, With an optional eyepiece, this telescope doubles as a fine visual instrument for studying deep-space wonders. height: 160, entityId: 101346, The OTA arrived with a free The rear cell features large collimation knobs and a built-in fan to speed cooling of the mirror (requires 8 AA batteries, not included). 65&Counting, vrodriguez2324 and Bilbo Baggs like this. galaxies in the same FOV. I'll also give a few comparisons of it to my ED80 throughout. Orion 6" f/4 Newtonian Astrograph Reflector Telescope But the 8" reflector width: 160, $3.99 Home References Skywatching Best telescopes for deep space in 2023 By Tom Kerss Contributions from Tantse Walter last updated 13 March 2023 The best telescopes for deep space will let you. the best of which has been my trusty little Orion 80mm ED refractor (which Of course, the 6" f/4 Newtonian Astrograph can also be used for spectacular visual observations of deep-sky and solar system based celestial objects. Shading is visible on the lighter bands. I didn't want to spend caught a bad case of aperture fever. . }, { than being a happy customer.) 818-347-2270. orderinfo@telescopes.net. spikes, the mirror with its slight aberrations, and maybe even the slightest This triple star is stunning in my ED80; the 8" does a in the back of my mind for a while; that particular scope seemed to make the On a good night (a night where the air above is steady and the stars aren't twinkling), the practical upper limit of a large telescope is 300x, even thought the theoretical limit may be much higher. width: 160, The atmosphere above us is constantly in motion, and it will distort the image seen through the telescope. JavaScript seems to be disabled in your browser. }, { defaultImage: '', This imaging powerhouse reveals dim objects as astonishingly bright with just minimal exposure times of your DSLR or astronomical camera. I haven't seen Jupiter very high in the sky through this scope Yes, I recommend this even to my fellow SRFs! Standard Delivery: $0.00Standard Delivery to Canada: $50.003 Day Delivery: $108.002 Day Delivery: $108.00Next Day Delivery: $128.00, {"clickFunction":"function() {$(\'#_widget903603798007\').widgetClass().scrollPrevious(\'#_widget903603798007\');}","widgetClass":"ButtonWidget"}, { holder back on the focuser because the compression ring unit had a lower profile, layers: 'VID017-IntroCollimate' }, { Beginner Level - Suited for a wide range of uses, these products are simple to operate and set up. Sign up for OPT news, exclusive offers, and updates on the latest gear! I've had refractors from 60mm on up to 5" in aperture over the years, I feel that between this scope and my ED80, I have two fine telescopes Weighs 33 lbs., 12 oz. entityId: 100118, rings. much larger and more stable would be necessary. Our 100% satisfaction guarantee says it all. objects in focus is what's most important, and I've been happy with what I've Typically in-stock items will ship first and backordered items will follow as soon as they are available. Lowest useful magnification is the power at which the exit pupil becomes 7mm in diameter. ring has a large thumbscrew, which makes it easy to open and close the rings optics. but I've never really been a CAT kind of guy. Reflector telescopes use a pair of large and small mirrors to direct incoming light to the eyepiece. }, { Orion offers telescopes for every level: Beginner, Intermediate, Advanced, and Expert. me. There are also three smaller screws that will "lock" the mirror the mount with its three 7.5 lb counterweights attached. }, { We will match any online price that we confirm as valid. During first light I realized how much of a problem the focuser was. height: 160, to my ED80 dampening in less than a second on the same mount. }, { sourceSelector:'' InternetSales@optcorp.com, 800-483-6287 Starry Night Special Edition astronomy software }, { defaultImage: '', Orion's Telescope Buyer's Guide is a great place to start. The Dobsonian telescope tube assembly is a classic Newtonian. expecting the 8" to excel at planets. Referring to the manual is recommended. Open We look forward to helping you start your astronomy journey! Telescopes with larger optical diameters collect more light, which leads to an increase in brightness and image resolution compared to smaller instruments. entityType: 'product' is also evident. Pair of hinged tube rings defaultImage: '', We do not price match competitors if they are out of stock. At f/4.9, this scope made me a little curious and concerned about coma. entityType: 'product' Orion Telescopes & Binoculars is one of the leading makers of astronomy and birdwatching components in the U.S. As with any fast Newtonian reflector telescope, an optional coma corrector is recommended to eliminate inherent coma for optimized imaging performance. entityId: 99810, units from Mercury Systems Support. I could actually A large thumbscrew on the focuser is used to adjust the tension, and three width: 160, I thought briefly about Schmidt-Cassegrains, sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=103143&isPDP=true', Thats why our unbiased, non-commissioned product advisors only incentive is to recommend a product that they truly believe is the right choice to help you meet your goals, and at a price point that also meets your budget. width: 160, Some are easy to use but might be on the large or heavy side. Orion 6" f/4 Newtonian Astrograph Reflector Telescope sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=102695&isPDP=true', sourceSelector:'' entityType: 'product' All Rights Reserved. 2 Hinged tube rings defaultImage: '', This telescope is a great choice for wide-field imaging! These products will appeal to the more technically inclined. entityType: 'product' defaultImage: '', to fund the purchase of my beloved ED80. layers: 'ap1638_10212012' The astro-photographic capability of the telescope is based on the style, stability, and accuracy of the mount and tripod. The mirror cell holds the 8" parabolic primary mirror sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=99810&isPDP=true', This warranty is for the benefit of the original retail purchaser only. Beginning level telescopes will show you countless lunar craters, Saturn's rings and a myriad of star clusters and nebulae! Orion 8" f/3.9 Newtonian Astrograph Reflector Telescope | Orion Three easy-grip, push-pull collimation hand knobs on the primary cell make collimation adjustments easy. the 8". Reflector mirrors are made from glass with different levels of thermal expansion. I find that my ED80 is much better suited for this due to its nearly perfect entityType: 'product' The 6" f/4 Newtonian Astrograph Reflector features a precise, 2" dual-speed (10:1) linear-bearing Crayford focuser which lies 7" back from the front of the 22.5" long optical tube. Orion 6" f/4 Newtonian Astrograph Reflector Telescope }, { Yes, I recommend this even Collimating a Newtonian Reflector for Astrophotography - AstroBackyard Optical instruments with this rating will have very good optical and mechanical quality. a big enough deal for me to worry about. little planetary made itself easily visible. know any better.). In any area in which one scope falls I really wish I had some Plossls or other types of eyepieces axes, but the focuser will disrupt the balance when the scope is in certain The 2" entityType: 'product' Some are intended for specialized uses. equatorial bands. entityId: 103102, I also adjusted the focuser itself to remove most of the slop. From our blog. This warranty is for the benefit of the original retail purchaser only. Some initial assembly may be required depending on the type of product. 5348 Topanga Canyon Blvd. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=102703&isPDP=true', Currently Im imaging with a Nikon D5300 and the celestron AVX 6 Newt. Details Select delivery location In stock Usually ships within 2 to 3 days. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=101346&isPDP=true', This 6" aperture imaging reflector boasts fast optics to allow users to take short exposures with high quality brightness and sharpness. layers: 'ap1783_11142012' The SpaceProbe 130ST EQ is a fine, first-time telescope for any newbie who wants to learn how to track celestial bodies as well as seek further into space for those DSOs (Deep Sky Objects). Allen screws atop the focuser. entityType: 'product' sufficiently, it's capable of giving very impressive planetary views. Eight AA batteries (not included) are required for cooling accelerator fan operation, or a portable 12V power supply (sold separately) can be used. The "theoretical" limit generally is 50x the aperture of the scope in inches (2x the aperture in mm). entityType: 'product' Collimating a Newtonian telescope is something every backyard astronomer should experience. defaultImage: '', We reserve the right to verify a competitor's advertised price and the availability of the item. }, { }, { The Andromeda Galaxy is much brighter They typically take a bit longer to learn and need some set-up or adjustments. defaultImage: '', that ruled out buying a Dob. 2" holder and the 1.25" adapter with excellent compression ring I ended up putting the original 2" defaultImage: '', A cooling accelerator fan is included on the primary mirror cell for rapid temperature equilibration, to ensure stable images. A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product due to its size and weight. The 200mm-aperture parabolic primary mirror is made from low-thermal-expansion BK7 optical glass. Expand your viewing experience with accessories ranging from moon filters to power-boosting Barlow lenses to advanced computerized telescope mounts. It will balance perfectly along the mount's declination and right ascension The 88mm minor axis secondary mirror provides excellent full-field illumination with modern cameras, with minimal light drop-off at the edge of APS-C sized sensors. the 8" and an OIII filter. In my Twist-lock eyepiece clamp compatible with telescope, binocular, and microscope eyepieces measuring 25-45mm in diameter With an assembled weight of 54 lbs., the Orion SkyLine 8" Dobsonian is a big telescope that promises big and bright views. knobs look much better than that boring, plain black plastic! SKU: ORI-10018 Optical Design: Newtonian Reflector Telescope Aperture: 203.2mm (8") Focal Ratio: f/5.9 Telescope Mount Type: Dobsonian Type of Electronics: Computerized Push-To Free shipping Both primary and secondary mirrors boast enhanced reflectivity (94%) aluminum coatings with a protective silicon dioxide (quartz) overcoat. Stars are nice and sharp with very little, if any, distortion near sourceSelector:'' layers: 'ap1842_7112013' Standard mirrors are made from material such as Soda-Lime Plate glass and BK-7 glass. Capture more photographic detail in less time with this fast f/4 imaging powerhouse, The 10"-class parabolic primary mirror boasts enhanced aluminum coatings on primary and secondary mirror that provide >92% reflectivity, Big 3" dual-speed linear bearing Crayford focuser is made of machined (not die-cast) aluminum and accepts both 2" and 1.25" accessories, Super affordability compared to premium "apo" refractors with half the aperture of this astrophotographic dream scope. Refractor telescopes refract, or "bend" incoming light to a focus by means of an objective lens. what I see. Instruction manual Using small adjustments and setting the screws' Details Select delivery location In stock Usually ships within 2 to 3 days. Limited Warranty against defects in materials or workmanship for one year from date of purchase. cap. field, Extended length front tube to block ambient light. defaultImage: '', are still quite sharp, particularly dimmer stars, and I'm very satisfied with A 2" extension adapter (35mm length) is included for visual observation.
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