Barlow Lens Eyepiece
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Orion Observer 70mm Equatorial Refractor Telescope
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DescriptionThis tried-and-true refractor goes the extra distance in introducing the novice to the wonders of the night sky. The Observer 70 features a 70mm fully anti-reflection coated achromatic objective lens, which provides 36% more light-gathering ability than a 60mm. Its 700mm focal length (f/10) will show you the stark beauty of the lunar surface, Saturn's rings, Jupiter's atmospheric belts, or the billowy clouds of the Orion Nebula. The included EQ-1 equatorial mount comes equipped with dual slow-motion controls for manual star tracking and adjustable aluminum tripod. Includes an EZ Finder II finder scope to help you zero in on your celestial targets, two eyepieces - 25mm (1.25") and 10mm (1.25") - and 90-deg star diagonal. One year limited warranty. Orion’s Observer 70 EQ combines the solid optical performance of a classic achromatic refractor with a German style equatorial mount. The Observer 70 features very good optics and 36 percent more light gathering power than 60mm beginner scopes. The complete accessory package includes high and low power eyepieces, a 90 degree star diagonal, a red-dot finder, illustrated instructions, and Orionâs Starry Night Special Edition astronomy software. The Observer 70 EQ features very good optical performance. Achromatic refractors have a two piece objective lens, the second lens element compensates for “chromatic aberration”, the false color or blue fringes seen in low cost telescopes. In daylight tests I see very little blue fringing with the standard equipment 10mm eyepiece (70X magnification), and none at all with the 25mm eyepiece (28X). Stars and planets show up very nicely with the Observer 70. The quadruple star in the Orion Nebula known as the Trapezium is cleanly split into four components with the 10mm eyepiece (70X magnification). When I combine the 10mm eyepiece with a 2X Barlow lens for 140X magnification, I’m treated to lovely views of Saturn’s rings and the little orange disk of Mars. My view of the Moon is delightfully crisp and clear; the 25mm eyepiece nicely frames the Lunar disk, and using the 10mm eyepiece I can easily see mountain peaks and terraced walls inside the crater Copernicus. The Observer 70 EQ also features an aluminum tripod and an EQ-1 equatorial mount. The equatorial mount is a little more complicated to balance and align than the Observer 70 AZ , but the reward is better slow motion control and tracking at magnifications over 100X. Simply point the equatorial axis at Polaris, the North Star, and the telescope tracks celestial objects by turning one slow motion knob. This makes it much easier to use a high power eyepiece while viewing the Moon and Planets. The “EZ Finder II” works by shining a red LED on a small window; just look through the window and line up the red spot with your target. This works OK for bright objects like the Moon and planets but not so well for finding galaxies and deep space objects. Orion’s Observer 70 EQ is simply a very good entry level telescope for a student or family. The good quality 70mm optics produce an image that is significantly sharper and brighter than 60mm beginner scopes, and the package includes a solid mount, two good eyepieces, and fully illustrated instructions. --Jeff Phillips Pros: Reliable refractor design Good views of the Moon and planets Complete accessory package Starry Night software included Cons: Finder only works for bright objects Features
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Eyepieces for Orion XT10 Classic Dobsonian Telescope?
I plan on getting the Orion XT10 Classic Dobsonian Telescope, and am unsure of what eyepieces to get.
I more or less understand what a barlow len's is, and a plossl, but I was curious about the diagonal len's? Could I use one on a Dobsonian telescope? And what does a diagonal len's do?
My main reasoning for buying a dobsonian is for planetary view, so I was hoping I could have some recommendations of what eyepieces to get, that would provide me with much better viewing quality.
Oh, and also, does a light pollution filter len's go one the eyepiece, or actual lens at the end of the scope?
The XT10 is a great scope. Don't bother with the diagonal, since they are only used on refractors and Schmidt-Cassigrain telescopes (SCT).
A good 2x barlow effectively doubles the number of eyepieces you own. It doubles the power of any one eyepiece (for example, a 24mm becomes a 12mm).
Depending on what your budget is and what your planning on looking at, you would want at least one low power eyepiece (30mm to 40mm) and a medium power eyepiece (15mm to 25mm). Along with the barlow, these give you a great range of options. The main thing to remember is that low powered eyepieces will tend to give you better views of deep sky objects and not move out of the filed of view as fast than a high powered eyepiece. High powered eyepieces (under 10mm) are best reserved for night s of exceptional clear and steady seeing or for planetary viewing.
Any light filter screws into the bottom of the eyepiece. A good overall filter is a nebula filter or ultra high contrast filter. These will help cut down on sky glow and light pollution.
One accessory that I would highly recommend getting for your scope is a telrad finder. These help you in finding objects through a process called "star hopping". A telrad finder is an invaluable tool for your scope.
If you can, join your local astronomy club or see if there is a national astronomy club for your country (such as the Astronomy League in the U.S. or the Royal Astronomical Society of Canada). When your starting out in the hobby, it really does help to have a mentor to show you the ropes and to try out other people's equipment, to see if it will work for you.
Lastly, I would recommend getting a copy of "Nightwatch" by Terrance Dickinson. It's an excellent starter book and it has lists of other resources. The other book is about the technique of star hopping to various objects. It's a little more technical than "Nightwatch", but does a good job of walking you through the process.
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 965inch 3X telescope eyepiece barlow lens  US $3.95
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 125 BARLOW 2x LENS ACHROMATIC EYEPIECE US $38.72
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 High 150 Power Refractor Telescope 6mm 20mm Eyepieces 3X Barlow Lens 1 Left US $77.00
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Orion Observer 70mm Equatorial Refractor Telescope
List Price: |
DescriptionOrion’s Observer 70 EQ combines the solid optical performance of a classic achromatic refractor with a German style equatorial mount. The Observer 70 features very good optics and 36 percent more light gathering power than 60mm beginner scopes. The complete accessory package includes high and low power eyepieces, a 90 degree star diagonal, a red-dot finder, illustrated instructions, and Orionâs Starry Night Special Edition astronomy software. The Observer 70 EQ features very good optical performance. Achromatic refractors have a two piece objective lens, the second lens element compensates for “chromatic aberration”, the false color or blue fringes seen in low cost telescopes. In daylight tests I see very little blue fringing with the standard equipment 10mm eyepiece (70X magnification), and none at all with the 25mm eyepiece (28X). Stars and planets show up very nicely with the Observer 70. The quadruple star in the Orion Nebula known as the Trapezium is cleanly split into four components with the 10mm eyepiece (70X magnification). When I combine the 10mm eyepiece with a 2X Barlow lens for 140X magnification, I’m treated to lovely views of Saturn’s rings and the little orange disk of Mars. My view of the Moon is delightfully crisp and clear; the 25mm eyepiece nicely frames the Lunar disk, and using the 10mm eyepiece I can easily see mountain peaks and terraced walls inside the crater Copernicus. The Observer 70 EQ also features an aluminum tripod and an EQ-1 equatorial mount. The equatorial mount is a little more complicated to balance and align than the Observer 70 AZ , but the reward is better slow motion control and tracking at magnifications over 100X. Simply point the equatorial axis at Polaris, the North Star, and the telescope tracks celestial objects by turning one slow motion knob. This makes it much easier to use a high power eyepiece while viewing the Moon and Planets. The “EZ Finder II” works by shining a red LED on a small window; just look through the window and line up the red spot with your target. This works OK for bright objects like the Moon and planets but not so well for finding galaxies and deep space objects. Orion’s Observer 70 EQ is simply a very good entry level telescope for a student or family. The good quality 70mm optics produce an image that is significantly sharper and brighter than 60mm beginner scopes, and the package includes a solid mount, two good eyepieces, and fully illustrated instructions. --Jeff Phillips Pros: Reliable refractor design Good views of the Moon and planets Complete accessory package Starry Night software included Cons: Finder only works for bright objects This tried-and-true refractor goes the extra distance in introducing the novice to the wonders of the night sky. The Observer 70 features a 70mm fully anti-reflection coated achromatic objective lens, which provides 36% more light-gathering ability than a 60mm. Its 700mm focal length (f/10) will show you the stark beauty of the lunar surface, Saturn's rings, Jupiter's atmospheric belts, or the billowy clouds of the Orion Nebula. The included EQ-1 equatorial mount comes equipped with dual slow-motion controls for manual star tracking and adjustable aluminum tripod. Includes an EZ Finder II finder scope to help you zero in on your celestial targets, two eyepieces - 25mm (1.25") and 10mm (1.25") - and 90-deg star diagonal. One year limited warranty. Features
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Orion SpaceProbe 130 EQ Reflector
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DescriptionThe Orion SpaceProbe 130 EQ Reflector is a Newtonian reflector telescope packaged with a sturdy equatorial mount, two Explorer II eyepieces, a 6x30 finder scope, and Orionâs Starry Night Special Edition software. Invented by Sir Isaac Newton, reflector telescopes provide more light gathering power per dollar than any other telescope design. With 130mm (5.1 inches) of aperture, the SpaceProbe 130 produces images that are twice as bright as 90mm telescopes and more than four times brighter than 60mm beginner scopes. The Orion SpaceProbe 130 EQ Reflector with its Explorer II eyepieces serves up bright, clear images of the Moon, the planets, and even deep space objects like star clusters and galaxies. The 25mm eyepiece magnifies the image by 36 times; when I look at the Pleiades or Seven Sisters cluster at 36X the SpaceProbe 130 shows me a bright open cluster with dozens of point-like stars filling the field of view. When I use the 10mm eyepiece (90X magnification) the lunar disk fills the field of view and the rings of Saturn are plainly resolved. And when I use an optional Ultima 2X Barlow with the 10mm eyepiece for 180X magnification I can see the cloud bands of Jupiter and pick out individual stars in bright globular clusters like M13. The EQ2 equatorial mount included with the Orion SpaceProbe 130 EQ Reflector comes partially assembled, but it shouldn’t take long to set up. The trick to using an equatorial mount is to point the polar axis at Polaris, the North Star. Once the mount is aligned and balanced, the telescope tracks stars and planets at high power with just a turn of one slow motion knob. You can even add an optional motor drive for hands free tracking. The Orion SpaceProbe 130 EQ Newtonian Reflector Telescope is a simply a great value. The Explorer II eyepieces deliver bright sharp images of the Moon, the planets and the stars, and the EQ2 mount can be motorized for hands free tracking. --Jeff Phillips Pros: More than 4 times brighter than 60mm scopes Includes two eyepieces and a 6x30 finder Solid equatorial mount and aluminum tripod Starry Night software and SkyTheatre DVD included Ships to the U.S. including Alaska, Hawaii, and Puerto Rico. Orion SpaceProbe 130 EQ Reflector Telescope An affordable but very capable telescope130mm aperture and 900mm focal length for great all-around viewing performanceIncludes sturdy tripod and equatorial mount for hands-free celestial trackingIncludes two eyepieces, finder scope, focuser, collimation cap, and FREE Starry Night astronomy softOne-year limited warranty A lot of folks shopping for their first telescope tell us that they have always had a fascination with the stars. They've been wanting to get a telescope for a long time, they say. We understand very well the lure of the night sky. It has intrigued mankind for millennia with its beauty and mysteriousness. And still does. So it's only natural to want to know more about it, to get a closer look. If you share this fascination, and are ready finally to spring for that telescope, then consider the affordable but very capable Orion SpaceProbe 130mm EQ Reflector Telescope. Sporting the classic long-tube Newtonian design, the Orion SpaceProbe 130mm provides great all-around viewing performance. One minute you can be studying lunar crater formations at high power; the next, the ethereal glow of a nebular star factory. A few minutes later, the ringed visage of Saturn. All served in crisp detail by way of the SpaceProbe's light-gathering 130mm (5.1") primary mirror of 900mm focal length (f/6.9). The mirror lies at the base of the rolled-steel optical tube, which is outfitted with a smooth rack-and-pinion focuser. It accepts 1.25" telescope eyepieces, including the two fully coated Explorer II telescope eyepieces that come standard with the Orion SpaceProbe 130mm: a 25mm for low-power viewing at 36x and a 10mm for higher-power looks at 90x. Also standard is a 6x30 achromatic finder scope to help home in on celestial targets. The mount is our sturdy EQ-2 equatorial model, with adjustable aluminum legs and accessory tray. Slow-motion controls allow fine Features
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Orion StarBlast 4.5 Astro Telescope
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DescriptionOrion StarBlast 4.5 Astro Reflector TelescopeLaunch a lifetime of stargazing with this compact, ready-to-use telescopeTop-notch optics show you the moon, the planets, the stars and moreScope comes fully assembled so you can go from box to backyard in minutesHigh-quality optics, point-and-view ease of use, remarkable portability, all for less than $200Your ticket to space-tourism without the zero-G nauseaMaybe it's because many of us started out with those frustrating little department store refractors, but at Orion we strive to offer quality telescopes for beginners that are easy to use and will inspire their natural inclination to explore.The Orion StarBlast is one such telescope. Pint-sized in stature, it's a real reflecting telescope that's super-simple to use and yet manufactured with the kind of quality you'd expect in more expensive models.The Orion StarBlast is a point-and-view telescope that swivels smoothly on its sturdy, low-profile base. No complicated setup is required. In fact, it comes pre-assembled and ready for action right out of the box! Just carry it outdoors by its built-in handle, place it on the ground or on a picnic bench, and let the fun begin!Inside the StarBlast's 18"-long steel tube are real, quality telescope optics, including a 114mm (4.5") parabolic mirror. With the two Explorer II telescope eyepieces, upcoming skywatchers will see spectacular views of the Moon's craters, the planets, star clusters, and lots of other exotic space stuff. Aiming the Orion StarBlast is easy with the EZ Finder II "red dot" finder scope. The package also includes an eyepiece rack and a snap-on dust cap.The Orion StarBlast will not only give beginners hour after hour of fun, but will also nurture their interest in the night sky. One-year limited warranty. This item cannot be shipped internationally due to its size and weight. Features
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BARSKA 40070 Starwatcher Compact Refractor Telescope with Table Top Tripod And Carrying Case
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DescriptionThere's an amazing show to be seen in the night sky and this Barska travel telescope is a great tool. You get a totally portable 300x telescope with a 70mm objective lens and a tabletop tripod. You also get a copy of the highly popular Deep Sky software, which includes a searchable database of over 10,000 celestial objects and a What's Up Wizard that delivers a list of what is visible at the observer's location. The telescope is a precision optical instrument that is perfect for the aspiring astronomer on the go. Includes the telescope, finder scope, eyepieces, software and a carry case. An ideal entry-level telescope for amateur astronomers, the Barska Starwatcher 300-power telescope brings you closer than ever to the stars and planets. The refractor telescope is equipped with such features as coated glass optics for enhanced image brightness, interchangeable eyepieces with 3x Barlow lenses for increased viewing power, and smooth-functioning mounts. For good measure, Barska added a beginner's version of the highly popular Deepsky Astronomy software, which is packed with a searchable database of more than 10,000 objects, including nebulae, star clusters, double stars, variable stars, and other types. Simply load it on your PC and begin your journey to the stars and planets. Bundled with a sturdy adjustable tripod and a soft carrying case, the telescope carries Barska's limited lifetime warranty. Specifications Max power: 300x Focal length: 400mm Finder scope: 5x24 Draw tube: 1.25 inches Eyepiece 1: SR4 Eyepiece 2: K20 Diagonal: 45 degrees Warranty: Limited lifetime About Barska Barska is a worldwide sport optics company with strong brand recognition within the optics industry, with corporate offices in La Verne, California, and warehouses and distribution centers in La Verne and Shanghai, China. Barska offers an extensive line of precision sport optics products, such as binoculars, riflescopes, spotting scopes, and telescopes. The product range has been designed and built with the latest optical technology, allowing users to enjoy all their favorite leisure time outdoor activities, including bird watching, outdoor observation, hunting, fishing, stargazing, concerts, and sporting events. The Barska 40070 Starwatcher Compact Refractor Telescope with Table Top Tripod and Carrying Case is an ideal telescope for the aspiring amateur astronomer. Ideal for students or those interested in learning more about the night sky, the 70mm objective lens can zoom up to 300x power. Use one of the interchangeable eyepieces with a 3x power Barlow lens for increased viewing capability. A pan-head mount and tripod is included with the telescope along with a handy carrying case. Take this portable telescope outdoors at night and the stars will open up before your eyes. Features
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Bushnell Powerview 7-15x25 Compact Zoom Binocular
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DescriptionThe Powerview 7-15x25 Zoom Binoculars from Bushnell wrap quality optics into a compact and affordable package for versatile, all around use. With 7 to 15x adjustable magnification, these binoculars allow you to attain both close up detail at the high power range and a wider field of view at the low power range. The porro prism system ensures edge to edge clarity so that you can get a total picture. Thanks to quality BK-7 prism glass and fully coated optics, the binoculars deliver clear and bright images. Meanwhile, the ergonomic rubber housing provides a secure grip and shock resistance--while the compact size is easy to carry with you. Built to last, the Powerview 7-15x25 Binoculars come with a limited lifetime warranty from Bushnell. Key Features: Fully coated optics for improved light transmission and brightness Non-slip rubber armor absorbs shock while providing a firm grip New contemporary styling Porro prism system for edge to edge clarity and a wider field of view Specifications: Magnification: 7 to 15x Objective Lens Diameter: 25 millimeters Close Focus: 6 feet / 1.8 meters Lens Coating: Fully Field of View: 262 feet at 1000 yards / 87 meters at 1000 meters Eyecups: Fold Down Eye Relief: 12 millimeters Focus System: Center Exit Pupil: 3.5 millimeters at 7x / 1.6 millimeters at 15x Prism Glass: BK-7 Prism System: Porro Weight: 11 ounces / 315 grams Size Class: Compact Bushnell Powerview 7-15x25 Compact Zoom Binocular is small, lightweight, making it ideal for a variety of uses. Perfect for birdwatching and attending concerts, these affordable binoculars have a 25mm objective lens with 7 to 15x magnification and performs brilliantly, even in low light. The body has a sleek, contemporary design while the fully-coated Porro prism optics focus on the target with precision. The non-slip rubber armor provides a firm grip as well as absorbing shock from an accidental drop. Slip these durable, compact binoculars into your pocket, and you're ready to focus on every detail. The Bushnell(r) Powerview(r) Series of binoculars offers you compact, streamlined designs for bright, crisp views of wherever you're exploring. Features
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Orion SkyQuest XT10 Classic Dobsonian Telescope
Sale Price: $549.99 |
DescriptionOrion(r) SkyQuest(TM) XT Classic Dobsonians It's no wonder customers heap 5-star ratings on these gentle giants. For not only do their jumbo-sized optics and uncomplicated design bring a "new level of joy to simple observing," raved Astronomy magazine, but they're also the most affordable quality Dobs on the market. SkyQuest XT Classics aren't just good bang for the buck, they're a supernova of telescope value! XT Classics give you the deep-space thrills without the deep-pocket frills. We've kept them lean and mean to keep their prices low for tight budgets. But rest assured, they come fully equipped for adventure, whether you're a beginning stargazer or are graduating to a more capable instrument. All Classics feature an expertly figured parabolic mirror housed in an enameled steel optical tube. The tube rides on a stable Dobsonian base that allows easy point-and-view navigation and has a convenient carrying handle. A 2" Crayford focuser (XT6 has 1.25" rack and pinion focuser), EZ Finder II aiming device, 25mm Sirius Plossl eyepiece (1.25"), and quick-collimation cap are all standard equipment. Setup takes only a minute, leaving the rest of the evening to marvel at the planets, the Moon, and a myriad of deep-sky treasures. Enjoy the fantastic views â?" and savings! One-year limited warranty. Features
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Celestron Accessory Kit
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DescriptionCelestron Accessory Kit Features
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Celestron 21024 FirstScope Telescope
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DescriptionIn 1609, world-renowned Italian scientist, Galileo Galilei, introduced an elementary telescope to the growing astronomy community, which sparked interest into the mysterious night sky for centuries to come. Four centuries later, in celebration of the International Year of Astronomy 2009, Celestron offers the portable FirstScope Telescope. The FirstScope pays tribute to Galileo Galilei and many of history's most notable astronomers and scientists by displaying their names around the optical tube. Honoring the contributions of these men and women, who brought us one step closer to understanding the universe around us. The FirstScope is a wonderful keepsake for anyone interested in astronomy. This quality Dobsonian style telescope features a 76mm aperture reflector optical tube. FirstScope is an ideal entry-level astronomical telescope. It is very easy to observe with; you simply navigate the night sky by moving the tube in the direction of the desired object, making the viewing experience a snap! The compact design makes it easy enough to take with you on your next outdoor adventure. FirstScope is also stylish enough to be a decorative fixture on your bookshelf or desk. Features
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Celestron 93625 Universal 1.25-inch Camera T-Adapter
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DescriptionCelestron Telescope Astrophotography T-Adapter - 1-1/4in Universal 93625 Features
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