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Specials:
New
Eyepiece focal length range:
Barrel diameter:
Angular field of view range:
Eyepiece apparent field of view range:
Magnification factor range:
Lens elements range:
Finder scope magnification:
6x 8x 9x
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Accessories

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For upright, non-reversed images you need a correct-image diagonal. The Orion 45anddeg; Correct-Image Prism Diagonal is perfect for terrestrial viewing with a refractor or Cassegrain telescope. Fully multi-coated prisms give you superior image fideli
Was 
$49.99
Now 
$44.99
You Save 
$5.00

{ entityId: 8763, entityType: 'product' }

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The 1.25" Orion Prism Star Diagonal produces right-side-up images that are reversed left to right. The fully coated prisms provide superior image fidelity. It is not recommended for use with reflector telescopes or for terrestrial observing.
Was 
$39.99
Now 
$35.99
You Save 
$4.00

{ entityId: 8787, entityType: 'product' }

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The 1.25" Orion Correct-Image Star Diagonal is perfect for terrestrial use or for amateur astronomers who want a view that matches the orientation of a star chart.
Was 
$49.99
Now 
$44.99
You Save 
$5.00

{ entityId: 8850, entityType: 'product' }

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The 2" Orion Refractor Mirror Diagonal has a meticulously polished mirror to yield maximum performance. It fits 2" focusers, accepts 2" telescope eyepieces and includes a 1.25" eyepiece adapter. Not recommended for use in reflector telescopes.
Was 
$79.99
Now 
$71.99
You Save 
$8.00

{ entityId: 8879, entityType: 'product' }

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The mirror in this 1.25" Orion Enhanced Star Diagonal has been meticulously polished and features enhanced aluminum coatings to yield excellent 97% reflectivity. It fits 1.25" focusers and accepts 1.25" eyepieces. Ideal for refractor telescopes.
Was 
$79.99
Now 
$71.99
You Save 
$8.00

{ entityId: 130301, entityType: 'product' }

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The Orion Pentaprism 90-Degree Diagonal is the perfect complement to the Orion Premium Linear BinoViewer. It's the only diagonal we know of that will produce an upright, non-mirror-reversed view through a telescope equipped with the BinoViewer.
Was 
$199.99
Now 
$179.99
You Save 
$20.00

{ entityId: 29, entityType: 'ensemble' }

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Orion dielectric mirror diagonals are our highest quality diagonals, and a very good upgrade for that extra bit of performance in a refractor or schmidt cassegrain telescope. Features 99 percent reflectivity and extremely durable coatings.
Was
$99.99 - $129.99
Now
$89.99 - $116.99

{ entityId: 266, entityType: 'ensemble' }

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With their twist-tight clamping mechanisms, Orion Dielectric Twist-Tight Mirror Star Diagonals present a significant upgrade from typical thumbscrew-equipped diagonals. Boasting 99% reflectivity, these are the perfect diagonals for peak performance.
Was
$119.99 - $159.99
Now
$113.99 - $151.99
Compare

{ entityId: 100308, entityType: 'product' }

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Turn any refractor or Maksutov-Cassegrain telescope into a high-performance spotting scope! The Deluxe 45-degree Correct-Image Prism Diagonal transmits a right-side-up, correct left-to-right view. Not recommended for use with Newtonian reflectors.
Was 
$89.99
Now 
$80.99
You Save 
$9.00

{ entityId: 113782, entityType: 'product' }

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Coronado BF-5 right angle (1.25" diagonal) type secondary blocking filter. The blocking filter is the second element in any Coronado H-alpha system, it is just as crucial to your safety and the system's performance as the front element.
$329.00

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Coronado BF-10 right angle (1.25" diagonal) type secondary blocking filter. The blocking filter is the second element in any Coronado H-alpha system, it is just as crucial to your safety and the system's performance as the front element.
$499.00

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Coronado BF-15 right angle (1.25" diagonal) type secondary blocking filter. The blocking filter is the second element in any Coronado H-alpha system, it is just as crucial to your safety and the system's performance as the front element.
$699.00

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Meade #918A Diagonal Mirror (1.25") #07202. Diverts light 90 degrees to the telescope's main tube, permitting a more comfortable viewing position.
$29.99

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Meade Model 932 Image Erecting Prism #07210 for ETX-90 and ETX-125. Produces a correctly oriented image and convenient 45-deg observing angle for terrestrial observations.
$49.99

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Meade Model 928 Image Erecting Prism for Meade refracting telescopes #07217. 1.25"" barrel. Produces a correctly oriented image and convenient 45-deg observing angle for terrestrial observations.
$39.99

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Meade Model 933 Image Erecting Prism for ETX-60, ETX-70 and ETX-80 Models. Produces a correctly oriented image and convenient 45-deg observing angle for terrestrial observations. A great item for a home with a view or nature watching.
$49.99

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Meade Series 5000 2"" Enhanced Diagonal Mirror #07680. Our best diagonal for Meade LX90 and LX200 models. Features an incredible 99% reflectivity over the visual spectrum.
$149.99

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Celestron's 2" XLT Diagonal boasts high performance StarBright XLT coatings, allowing you to take full advantage of the wider field of view provided by 2" eyepieces.
$159.95

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Do you want GoTo capability but already have a SkyView Pro EQ mount? The Orion GoTo Upgrade Kit allows you to add GoTo capability to your telescope mount so you can automatically locate and track more than 42,900 targets with the push of a button.
Was 
$499.99
Now 
$449.99
3 easy payments of $150.00
With payment plan

{ entityId: 7832, entityType: 'product' }

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The Orion TrueTrack DC drive system provides dual-axis control for high-power viewing and photography with the SkyView Pro mount. It allows you to choose from 3 different speeds as well as a pause mode as well as sidereal tracking for total control.
Was 
$169.99
Now 
$152.99
You Save 
$17.00

{ entityId: 7947, entityType: 'product' }

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Our SynScan GoTo Hand Controller for Orion GoTo mounts and telescopes features an extensive database of over 42,000 celestial objects to explore. The V5 version has a USB and serial ports for controlling a USB-compatible GoTo mount from a computer.
Was 
$139.99
Now 
$125.99
You Save 
$14.00

{ entityId: 99600, entityType: 'product' }

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This cordless, precision DC servo drive allows motorized tracking of objects in space as they appear to migrate across the night sky due to Earth's rotation. The Orion AstroTrack Drive works with Orion EQ-1 or Min-EQ equatorial mounts.
Was 
$69.99
Now 
$62.99
You Save 
$7.00

{ entityId: 118188, entityType: 'product' }

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Pop this precision mini-motor on a compatible Orion EQ-1C equatorial telescope mount to track celestial objects automatically. This efficient DC motor drive provides regulated sidereal-rate tracking in right ascension (RA).
Was 
$59.99
Now 
$53.99
You Save 
$6.00

{ entityId: 118235, entityType: 'product' }

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This cordless, precision DC servo drive allows motorized tracking of objects in space as they appear to migrate across the night sky. This version of the Orion AstroTrack Drive works with telescopes supplied with the EQ-1B equatorial mount.
Was 
$49.99
Now 
$44.99
You Save 
$5.00

{ entityId: 6, entityType: 'ensemble' }

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The EQ-M motor drives allow precise tracking with your EQ-1, EQ-2 and Astroview mount. The hand controller allows for faster speed override when centering objects. The drives run on 4 D-cell batteries (not included).
Was
$99.99 - $149.99
Now
$89.99 - $134.99

{ entityId: 103505, entityType: 'product' }

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The time-saving Orion GPS Kit for computerized GoTo telescope mounts automatically provides precise Global Positioning System location and time data to your GoTo hand controller module so you don't have to repeatedly enter the information.
Was 
$179.99
Now 
$161.99
You Save 
$18.00

{ entityId: 131536, entityType: 'product' }

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Control any Orion GoTo mount or telescope wirelessly with your iOS or Android smartphone! All you need is the SynScan Wi-Fi Adapter and the free SynScan Pro app. Intuitive touchscreen interface. You'll never go back to the wired handset again!
Was 
$69.99
Now 
$62.99
You Save 
$7.00

{ entityId: 7880, entityType: 'product' }

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Do you want to be able to locate over 14,000 objects with pushbutton ease? The Orion IntelliScope Computerized Object Locator lets you do just that. Just plug in to most SkyQuest XT IntelliScopes (not compatible with XX12i IntelliScope).
$199.99

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Take a giant leap into the future of telescope control! Now you can wirelessly control your Orion GoTo telescope right from your Apple iPhone, iPad, or Android device. All you need is an Orion StarSeek astronomy app (sold separately) and this module!
Was 
$199.99
Now 
$179.99
You Save 
$20.00

{ entityId: 99636, entityType: 'product' }

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Make your StarBlast 6 smarter! This upgrade kit includes everything you need to add computerized push-to IntelliScope object location technology to your StarBlast 6 Astro Reflector Telescope. NOTE: Compatible with StarBlast 6 model #9926 only.
$159.99

{ entityId: 99598, entityType: 'product' }

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Use the SkySync accessory to easily add GPS to your Celestron computerized telescope and get time, date, and location downloads from orbiting Global Positioning Satellites.
$149.95

{ entityId: 114973, entityType: 'product' }

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The Meade Polaris Electric RA Motor Drive attaches easily and directly to the Meade Polaris EQ telescopes.
$39.99

{ entityId: 116652, entityType: 'product' }

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The Celestron NexStar+ AZ Hand Control is the standard computer accessory on all current altazimuth mounted Celestron go-to telescopes: SLT, LCM, SE, NexStar Evolution, and CPC, and CPC Deluxe computerized telescopes.
$109.95

{ entityId: 116653, entityType: 'product' }

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The Celestron NexStar+ EQ Hand Control is the standard computer accessory on all current equatorially mounted Celestron go-to telescopes: Advanced VX, CGEM, CGEM II, CGEM DX, CGX, and CGE Pro computerized telescopes.
$109.95

{ entityId: 102711, entityType: 'product' }

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Become an instant astronomer, even if you've never used a telescope before, with the one-of-a-kind StarSense AutoAlign from Celestron. Even the most advanced telescope users will love using StarSense AutoAlign.
$359.95

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The 12.5mm Orion Illuminated Plossl Telescope Eyepiece is great for accurately aligning your computerized telescope because the LED illuminated double crossline will tell you when the star is dead center. Also use it for guiding during an exposure.
Was 
$79.99
Now 
$71.99
You Save 
$8.00
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{ entityId: 8889, entityType: 'product' }

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The Orion 1.25" Telescope Accessory Kit includes a good starting assortment of eyepieces to get the most out of your telescope. Two Sirius Plossl 1.25" eyepieces, a Shorty Barlow lens, 4 filters for lunar and planetary viewing, and an aluminum case.
Was 
$99.99
Now 
$89.99
You Save 
$10.00
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{ entityId: 8923, entityType: 'product' }

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The 20mm Orion Expanse is a low powered eyepiece that is perfect for wide field views of deep sky objects. The fully multi-coated elements deliver sharp images with good color correction and contrast.
Was 
$49.99
Now 
$44.99
You Save 
$5.00
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{ entityId: 130974, entityType: 'product' }

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Premium quality zoom eyepiece features lanthanum glass lens elements to minimize chromatic aberration and a waterproof housing. Fully multi-coated optics with continuous zoom range of 8-24mm. Parfocal design with 20mm eye relief through zoom range!
Was 
$199.99
Now 
$189.99
You Save 
$10.00
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{ entityId: 407, entityType: 'ensemble' }

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Swap out your Plossls for our EF Widefields and enjoy exceptionally flat images. Expansive fields of view provide a comfortable, immersive experience. All are fully multi-coated with rubber grip and twist-up eyecups. Affordable too!
Was
$79.99
Now
$71.99
Compare

{ entityId: 409, entityType: 'ensemble' }

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Combining a wide field of view with tack sharp images at the edges of the field, the Orion Ultra Flat Field eyepieces will quickly become a favorite in your telescope accessory case!
Was
$99.99 - $199.99
Now
$89.99 - $179.99
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{ entityId: 51, entityType: 'ensemble' }

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Orion Sirius Plossl eyepieces are ideal for any type of telescope; refractor, reflector, or catadioptic. They offer a 52-degree apparent field with clean, high-contrast images. Fully coated optics provide crisp and bright views of the cosmos.
Was
$34.99 - $99.99
Now
$29.74 - $89.99
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{ entityId: 68, entityType: 'ensemble' }

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The Orion Edge-On Planetary Eyepieces provide medium to high power views of moon and planetary details. The multi-element design provides a flat field of view ensuring an extremely sharp focus. Long eye relief makes viewing comfortable for everyone.
Was
$99.99 - $269.99
Now
$89.99 - $256.49
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{ entityId: 268, entityType: 'ensemble' }

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Each Ultra-Wide Orion LHD telescope eyepiece features an 80-degree apparent field-of-view and lanthanum glass to eliminate color-fringing and chromatic aberrations for true-color, high-contrast views of the cosmos with exceptional clarity.
Was
$279.99
Now
$251.99

{ entityId: 66, entityType: 'ensemble' }

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Orion Q70 eyepieces offer an amazingly wide 70-degree field of view! Five multi-coated lens elements deliver very sharp, high contrast views. Q70 eyepieces offer long eye relief and they're parfocal which makes it easy to swap between focal lengths.
Was
$99.99 - $289.99
Now
$89.99 - $275.49
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{ entityId: 55, entityType: 'ensemble' }

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The Orion Expanse eyepieces offer a wide 66-degree field of view and superior optical performance at a very affordable price. Great eye relief on all models ensures eyeglass wearers can view the entire field.
Was
$49.99 - $179.99
Now
$44.99 - $170.99
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{ entityId: 285, entityType: 'ensemble' }

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These Explore Scientific 92-degree series telescope eyepieces have the longest eye-relief in their class, which is perfect for those who desire the most comfortable hyper-wide viewing experience. Available in 12mm and 17mm focal lengths.
$549.99

{ entityId: 286, entityType: 'ensemble' }

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The Explore Scientific 100-degree Series eyepieces are hyper-wide class oculars that can transform your visual astronomy experience. Explore Scientific 100-Degree Eyepieces are available in 5.5mm, 9mm, 14mm, 20mm, 25mm, and 30mm focal lengths.
$449.99 - $899.99

{ entityId: 56, entityType: 'ensemble' }

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2" eyepieces at an affordable price! The Orion DeepView 3-element design provides bright images and great contrast. Long eye relief allows for comfortable viewing even with eyeglasses and the barrel is threaded to accept standard 2" eyepiece filters.
Was
$79.99 - $89.99
Now
$71.99 - $80.99
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{ entityId: 78, entityType: 'ensemble' }

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Orion E-Series Beginner Telescope Eyepieces provide beginning astronomers with an affordable eyepiece selection to get the most out of a new telescope. Available in 3.6mm and 6.3mm focal lengths.
Was
$19.99 - $34.99
Now
$17.99 - $31.49
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{ entityId: 59, entityType: 'ensemble' }

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Stratus eyepieces deliver a wide 68-degree apparent field of view which allows you to see much more than a typical 52-degree Plossl. 8-element optics yield sharp, high contrast views while generous eye relief provides a comfortable visual experience.
Was
$149.99
Now
$134.99
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{ entityId: 20002, entityType: 'product' }

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This set of high powered Edge-On Planetary telescope eyepieces is designed for exceptional planetary and lunar views. Includes the 3mm, 6mm and 12.5mm eyepieces. All have a flat-field design which means sharp focus to the edge of the field of view.
Was 
$269.99
Now 
$256.49
You Save 
$13.50
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{ entityId: 20014, entityType: 'product' }

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This set of Edge-On Planetary telescope Eyepieces is designed for exceptional planetary and lunar views. Included are the 5mm, 9mm and 14.5mm telescope eyepieces. All have a flat-field design which means sharp focus to the edge of the viewing field.
Was 
$269.99
Now 
$256.49
You Save 
$13.50
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{ entityId: 102073, entityType: 'product' }

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This affordable kit is ideal for anyone interested in exploring deep-sky objects. Includes three 2" DeepView eyepieces - 42mm, 38mm, and 28mm focal lengths, a 2" Barlow lens, and a 2" SkyGlow Broadband Filter, and a large pluck-foam accessory case.
Was 
$299.99
Now 
$269.99
You Save 
$30.00
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{ entityId: 8890, entityType: 'product' }

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A complete assortment of accessories for your telescope, the Orion Premium Telescope Accessory Kit comes with five Sirius eyepieces, a Shorty Barlow, and six filters for lunar and planetary observing, and a case. Everything you need, all in one kit!
Was 
$169.99
Now 
$158.09
You Save 
$11.90

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Showing 4 of 43  View All

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The 1.25" Deluxe Orion Stargazers Filter Set is a comprehensive 6 filter set for the best views of all types of celestial objects. Includes the SkyGlow Light Pollution Filter, Variable Polarizing Filter, and 4 Planetary filters.
Was 
$119.99
Now 
$107.99
You Save 
$12.00

{ entityId: 5598, entityType: 'product' }

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The Moon is a wonderful sight through a telescope, and the 1.25" Orion 25% transmission filter allows more lunar detail and surface features to be seen because it reduces the glare from the Moon. Especially useful for viewing crescent phases.
Was 
$22.99
Now 
$20.69
You Save 
$2.30

{ entityId: 8889, entityType: 'product' }

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The Orion 1.25" Telescope Accessory Kit includes a good starting assortment of eyepieces to get the most out of your telescope. Two Sirius Plossl 1.25" eyepieces, a Shorty Barlow lens, 4 filters for lunar and planetary viewing, and an aluminum case.
Was 
$99.99
Now 
$89.99
You Save 
$10.00
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{ entityId: 99590, entityType: 'product' }

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A great tool for bringing out details in the planets and Moon is this 1.25" set of four Orion Color Telescope Filters. Each colored filter brings out different details in the planets allowing for a totally different view.
Was 
$49.99
Now 
$44.99
You Save 
$5.00

{ entityId: 101900, entityType: 'product' }

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With the affordable 5-Position Filter Wheel, you can change filters without removing your telescope eyepiece or astrophotography camera. Just rotate the wheel with light finger pressure and the selected filter clicks into place. Presto!
Was 
$79.99
Now 
$71.99
You Save 
$8.00

{ entityId: 113384, entityType: 'product' }

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This Premium 20-piece Color Planetary Filter Set includes our most complete assortment of 1.25" color filters to help enhance observations of the Moon and planets. Compatible with Orion 1.25" eyepieces, 1.25" filter wheels, and 1.25" filter sliders.
Was 
$199.99
Now 
$179.99
You Save 
$20.00

{ entityId: 4, entityType: 'ensemble' }

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The Orion glass solar filters allow perfectly safe viewing of the Sun's surface. Glass filters are superior to film solar filters because glass provides better contrast (a more natural yellow-orange color, rather than blue) and more durability.
Was
$79.99 - $199.99
Now
$71.99 - $179.99

{ entityId: 13, entityType: 'ensemble' }

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The Orion 13% Moon filters help reduce glare on the moon's surface so you can see more detail and features. These filters are especially useful to owners of large-aperture telescopes. It threads directly onto the eyepiece barrel.
Was
$17.99 - $24.99
Now
$15.29 - $22.49

{ entityId: 14, entityType: 'ensemble' }

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Orion Variable Polarizing Moon filters act like a dimmer switch for your telescope, allowing the perfect amount of light to come through. Whether the Moon is full or a thin crescent, you can adjust to reduce brightness and glare to bring out details.
Was
$29.99 - $59.99
Now
$26.99 - $53.99

{ entityId: 23, entityType: 'ensemble' }

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Designed to fit snugly over the objective lenses of your binoculars, these optical glass filters block 99.99% of incoming sunlight, allowing you to safely observe sunspots and granulation. Each filter features three thumbscrews for secure attachment.
Was
$149.99
Now
$134.99

{ entityId: 27, entityType: 'ensemble' }

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Orion Oxygen-III filters show amazing detail when viewing nebulae. Completely blocks all other visible wavelengths to boost contrast on emission and planetary nebulae as well as supernova remnants. A bigger contrast boost than the UltraBlock filters.
Was
$99.99 - $129.99
Now
$89.99 - $116.99

{ entityId: 31, entityType: 'ensemble' }

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Hydrogen-Beta nebula filters are perhaps the only way to see the faint and elusive Horsehead, California, and Cocoon nebulae. These filters pass light that these faint nebulae emit. Best used with medium to large aperture telescopes in dark skies.
Was
$99.99 - $129.99
Now
$89.99 - $116.99

{ entityId: 37, entityType: 'ensemble' }

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A light pollution filter designed for deep-sky astrophotography in light polluted skies with a camera. The Orion SkyGlow astrophotography filters enhance contrast and preserve color balance which eliminates the need for extra corrective processing.
Was
$99.99 - $159.99
Now
$89.99 - $143.99

{ entityId: 71, entityType: 'ensemble' }

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For highly light-polluted sites, the UltraBlock Narrowband Light-Pollution Filters are perfect. They block all forms of light pollution, allowing you to see fainter deep-sky celestial objects over unfiltered and wideband-filtered views.
Was
$79.99 - $99.99
Now
$71.99 - $89.99

{ entityId: 83, entityType: 'ensemble' }

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These budget-friendly Safety Film Solar Filters feature a durable black-polymer film filter material that display high-contrast, clear views of the Sun in a pleasing yellow-orange color. Safely observe sunspots, eclipses, and more.
Was
$24.99 - $29.99
Now
$22.49 - $26.99
Compare

{ entityId: 403, entityType: 'ensemble' }

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The Orion Safety Film Solar Filter for Reflector Telescopes are made with high-quality Safety Solar Film, which are made specifically for safe observation of the Sun through a telescope.
Was
$99.99 - $149.99
Now
$89.99 - $134.99

{ entityId: 3, entityType: 'ensemble' }

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SkyGlow Broadband filters enhance deep-sky objects in moderately light polluted skies. They block the most common wavelengths of light pollution for increased contrast and better views of all deep-sky objects, without needing to drive to dark skies.
Was
$49.99 - $69.99
Now
$44.99 - $62.99

{ entityId: 5567, entityType: 'product' }

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The 2" Orion LRGB Astrophotography Filter Set contains 4 must haves for beautiful astrophotos: Red, Blue, Green, and Luminance IR cutoff , all in a protective case. The filters are parfocal which eliminates the task of refocusing between exposure.
$279.99

{ entityId: 264, entityType: 'ensemble' }

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These Coronado etalon filters reduce the normal bandwidth of a SolarMax telescope or filter set from the single stack 0.7A performance to a more restrictive 0.5A to increase visibility of active regions and surface detail.
$599.00 - $2,399.00
Compare

{ entityId: 265, entityType: 'ensemble' }

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When properly mounted on your telescope, these Coronado filter sets allow safe observation and imaging of surface detail and prominences on the Sun in hydrogen-alpha (Ha) light.
$1,099.00 - $3,999.00
Compare

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