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  • Skywatcher 130mm refractor

    SkyWatcher 102/500 refractor on StarQuest mount. The SkyWatcher Esprit 80 comes with a 9 x 50 right angle finderscope, a 2" star diagonal, a 2-element thread-on field flattener, and a camera adapter as well as a Vixen-style dovetail and padded case. We haven't tried it yet, but it might work with Skywatcher Evostar-120 and Celestron Omni XLT 120 R refractor telescopes and possibly with other similar refractor telescopes as well. Pleasing to view. From 314. 2 out of 5 stars 12 The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift. See full list on firstlightoptics. With catadioptric (Cassegrain) telescopes, you can view true-to-life images day or night. g. 00 Add to Basket Primaluce Lab 235mm PLUS Tube Rings for Sky-Watcher 200p, 200p-DS & 8” Quattro Dec 21, 2020 · Quote I own a Skywatcher 80 mm Equinox refractor. Available at a surprisingly low price, this Orion EON telescope is a premium ED APO triplet refractor optical tube assembly with 130 mm (5. 5 ED APO OTA. SkyWatcher Explorer 130 - Find the lowest price on PriceRunner ✓ Compare prices (updated today) from 3 stores ✓ Don't overpay - SAVE on your purchase  Sky-Watcher ED Refractor Telescopes Sky-Watcher ESPRIT 3-Element ED PRO apo refractors Sky-Watcher Explorer 130 (AZ-GTI) Wifi Go-to Telescope . EQ8-R EQ8-RH. 150 mm apochromatic refractor with matched lens assembly with one ED; element; 1200 mm focal length (f/8) Dual-speed 3. After the initial alignment, their optical system is more resistant to misalignment than the reflector telescopes. Skywatcher 130mm (F5, 650mm FL) Reflector with EQ2 Mount. This scope has one of the largest  Motorised version of the Sky-Watcher 130, now includes multi-speed handset. ADVANTAGES. Buy Skywatcher Explorer-130M 130mm (5. Sky-Watcher Evostar 80 APO 80 mm apochromatic Refractor with Schott BK-7 and FPL-53 ED glass 600 mm focal length (f/7. OTA – Refractors. 99. Refractor telescopes for sale at Astronomics. I use it purely for visual observing. Sky-Watcher ProED 80mm Doublet APO Refractor Telescope The Black Diamond 80 ED is a modestly wide-field telescope offering bright, wide swaths of sky in a single view. 95. A suitable telescope on your tripod will also work great with your refractor telescope for a worthwhile view of the sky objects. 25" 14. The mount gives a fresh take on traditional  Items 1 - 32 of 34 SkyWatcher Black Diamond 80/600 ED Doublet Refractor (OTA). Astronomics is a family-owned business that has been supplying amateur astronomers, schools, businesses, and government agencies with the right optical equipment and the right advice since 1979. Checked & optimized before dispatch by the telescope specialists - experienced & competent. 25" The Sky-Watcher USA StarTravel 102mm f/4. 5) Dual-speed 2″ Crayford-type focuser with 1 Sky-Watcher Telescopes, Sky-Watcher Telescopes, Sky-Watcher Eyepiece, Sky-Watcher Telescope Mounts, Sky-Watcher 114mm Telescopes, Sky-Watcher Telescope Parts, Sky-Watcher 130mm Telescopes, Sky-Watcher Refractor Telescopes, Sky-Watcher 90mm Telescopes, Sky-Watcher Reflector Telescopes Sky Watcher's premium 80mm Esprit APO refractor has been paired with the Starlight Xpress SX-42 Trius monochrome camera for a perfect astrophotography solution. Observing with the Sky-Watcher EvoStar 120ED APO Refractor The additional aperture compared to a 100 mm diameter lens provides a dramatic increase in resolution and a heighten sense of seeing lunar and planetary surface phenomenon in seemingly 3D high-definition. Included are 25 mm LET and 5 mm planetary eyepieces. Specifications:Telescope  Results 1 - 16 of 16 SkyWatcher SolarQuest 70 Refractor Telescope [GEN SKYWATCHER Sky- Watcher 130mm/900mm motorised telescope on EQ2 mount. Any serious astrophotographer has at one point or another during their career considered getting an apochromatic refractor telescope, but it costs serious bu Summary 9. The Sky-Watcher ED-APO 80mm is a modestly wide-field telescope offering bright, wide swaths of sky in a single view. 1'') F/900 Newtonian reflector telescope on a manual EQ2 mount Good for Deep sky objects and the Moon. 12”) aperture. The suggested retail price of $4,000 for a 120mm (4. Not far removed, reaching skyward the crater wall of Archimedes pops into view in See full list on astronimus. Pre-Owned · Sky- Sky-Watcher 130mm/900mm motorised telescope on EQ2 mount. ED APO Sky-Watcher refractor telescopes are able to generate sharp images superior in quality to those achievable through any telescope optical design due to their nearly flawless unobstructed diffraction patterns and novel optical properties. 1") f/650 mini Dobsonian Telescope · Telescope System: Suitable for Beginners, Telescope with Mount,  Sky-Watcher EXPLORER-130PDS OTA SW_10219 is a Sky-Watcher telescope from the Robtics category Reflector Telescopes. A few weeks ago at a dark sky site in Dorset I bagged what was my best ever view of the M81 & M82 galaxy pair. Free 100 mm. Get the best deals on Sky-Watcher Refractor Telescopes when you shop the largest online selection at eBay. For the prices of many of the refractors being discussed here, would you consider a telephoto lens? For example a 300 mm f/2. Sky-Watcher Refractor Solar Filter Attach the Sky-Watcher Solar Filter for Refractors Telescopes securely over the front of your telescope to conduct safe solar viewing. Available on backorder  Amazon. These fast systems are optimized for observing wide Um unsere Webseite für Sie optimal zu gestalten und fortlaufend verbessern zu können, verwenden wir Cookies. 95 $599. 120 mm. Setting up the Sky-Watcher Esprit 100 refractor telescope in the backyard. There is not much wrong with this telescope. It is well suited for wide-field astronomical observation of prominent nebulae, star clusters, and galaxies from a dark-sky location, or can be used as an astrograph for sky Nov 23, 2019 · The Sky-Watcher Esprit line of refractors is a step up, with the Esprit 100 Super APO (Triplet) being my most used refractor of all time. With the diameter of 130mm, you can find hundreds of objects in the sky! This size class offers an impressing efficiency for a beginner´s telescope: with the  In honor of those has contributed to astronomy, Sky-Watcher is proud to present the commemorative International Year of Astronomy telescope - Heritage P130. A Dual-Speed 10:1 ratio focuser is now included for excellent focusing precision. At Sky-Watcher USA we’re bringing a whole new experience to owning a telescope. $649. Aperture: 4" (100mm), Type: Refracting Telescopes Sky-Watcher Evostar PRO 80 mm f/7. com. It is also a fine terrestrial telescope when mounted on an alt Skywatcher ED100 Refractor doublet with the case it came in and the two eyepieces that came with it. M Sky-Watcher ProED 120mm Doublet APO Refractor Telescope The additional aperture of this telescope provides a dramatic increase in resolution and a heightened sense of seeing lunar and planetary surface phenomenon in seemingly 3D-like high-definition. This is a limited edition telescope package for the SkyWatcher 20th anniversary, and available in limited supply. With an extremely useful 130mm of light gathering aperture, this telescope is a highly capable all-rounder for the observation of the Moon, bright planets, nebulae,  "Our first test on the Sky-Watcher Explorer-130 was to check the collimation of the mirrors, which we found were well aligned. 25" adapter is about 6" from the tube. EQ8-R, EQ8-RH. 5mm Leuvenhok 68° eyepiece (noted for its severe in focus) is about 5" from the tube A 2" 30mm APM UFF with 2" extender is about 7. Condition is "Used". Jan 29, 2014 · A new entry at the high end is the Sky-Watcher Esprit 120ED Super Apo. 14 €. These Solar Filters are made either with Baader Astro Solar™ Safety Film or Mylar. 0/10. Everything you need to get out under the stars. I have an older gold/champayne colour ED 120 refractor. Refractor telescopes are rugged. Aluminum case shows some wear, staining, no dings or dents. This Sky-Watcher 102mm (4") f/5 telescope is a two-element, air-spaced, fully multi-coated objective, achromatic refractor, which can give exciting "rich field" astronomical views. These filters are designed to work with the Skywatcher Startravel-120 telescopes. com : Skywatcher Explorer 130P f / 650 Newton Telescope with Objective Lens Diameter, 130 Millimeters AZ Mount Astronomical Refractor Telescopes for Adults Astronomy Beginners, Portable Travel Telescopes with Carry Bag. $428. Excellent visual scope. Image refractor telescope; 80mm objective lens; f/7. However a 1. Refractor and Reflector Telescopes. Fortunate indeed is the amateur astronomer with a Sky-Watcher Evostar ED100mm refractor on a clear night with transparent skies and a stable atmosphere. SkyWatcher 130/650 Newton on   10 items Sky-Watcher 120/600 az3 refractor Telescope. SkyWatcher Esprit 80 ED APO Triplet Refractor Specifications. 25″ eyepiece; Tube-ring attachment hardware in Aluminum carry case Observing with the Sky-Watcher EvoStar 120ED APO Refractor The additional aperture compared to a 100 mm diameter lens provides a dramatic increase in resolution and a heighten sense of seeing lunar and planetary surface phenomenon in seemingly 3D high-definition. The product Sky-Watcher 120mm Telescope with Portable Alt-Az Tripod – Portable f/5 Refractor Telescope – High-Contrast, Wide Field – Grab-and-Go Portable Complete Telescope and Mount System, S10105 4. From 323. Visionking Powerful 80 mm Refractor Astronomical Telescope Spotting Scope Space. " Our first test on the Sky-Watcher Explorer-130 was to check the collimation of the Compression-Ring adapter for Sky-Watcher Newtonians and 72ED Refracto 15 products ED-APO telescopes from SkyWatcher, TS Optics. If you are looking at Sun spots or just wanting to get a closer look at our closest Star, this filter will reflect the harmful rays and reduce the intensity of the Sun light Jan 18, 2020 · Page 1 of 2 - Sky-Watcher Evostar ED 80mm APO - posted in Refractors : Evening everyone. Dec 24, 2020 · Skywatcher telescope 120 PRO ED refractor with equatorial mount. The compact Sky-Watcher STARTRAVEL series are two-element, air-spaced, multi-coated objective, achromatic refractors, and are well proven performers for ‘Rich-Field’ views of star fields, clusters, nebulae, bright galaxies, planets, the Moon and, the Sun (with correct safety filtering!), as well as giving excellent terrestrial views. Explorer-130, . Sky-Watcher offers one of the most extensive lines of ED-APOCHROMATIC refractors in the world. Combines a reasonably fast f/7 focal ratio and triplet 3-lens ED optics for excellent performance during both visual and imaging operations. To be clear, this is the cheap 120mm, not the ED o This Sky-Watcher 120mm (5") f/5 StarTravel telescope is a two-element air-spaced fully multi-coated objective achromatic refractor giving exciting "rich field" astronomical views It provides excellent vistas of star fields clusters nebulae galaxies planets the Moon and (with correct filtering or by projection) the Sun It is also a fine terrestrial telescope when used with the provided 45 This Sky-Watcher 102mm (4") f/5 StarTravel telescope is a two-element air-spaced fully multi-coated objective achromatic refractor giving exciting "rich field" astronomical views It provides excellent vistas of star fields clusters nebulae galaxies planets the Moon and (with correct filtering or by projection) the Sun It is also a fine terrestrial telescope when used with the provided 45 120 mm apochromatic Refractor with Schott BK-7 and FPL-53 ED glass; 900 mm focal length (f/7. Primaluce Lab 100mm PLUS Tube Rings for Sky-Watcher ED80 or ED100 £179. Skywatcher Refractor 150/1200 optical tube A refractor with 150mm aperture, good imaging properties that is the dream of many amateur astronomers. 7-inch) telescope (optical-tube assembly only; you supply the mount) makes this a scope for the refractor devotee. Has usual scruff marks on the mount plates. 110-pound (50 kg) Payload; Belt-drive on Both Axes The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift.   SkyWatcher 70mm Refractor w/AZ3 tripod and mount Telescope. If you’re ready for the quality products and attentive service you’ve been waiting for, then you’re ready for Sky-Watcher USA. 15") Focal Length: 400 mm May 24, 2019 · Here we check out the company’s Startravel 102 AZ-GTe system which consists of a 102mm, short-focus refractor and a variant of its AZ-GTi mounts, the AZ-GTe. The petite silhouette of the Sky Watcher Evostar ED100 makes for an excellent compact, portable telescope that travels light and fits a small space. Get the best from OPT! Sky-Watcher Synta 130/900 is a mirror telescope system Newton with a mirror diameter of 130 mm and a focal length of 900 mm. Skywatcher is calling this scope the Evostar now. These telescopes are expensive and quickly grow in price as aperture is added. The Sky-Watcher ED APO optical design assures virtual elimination of secondary, residual false color normally present in 2-element achromatic lens designs using Crown and Flint glass. com/Presented by Ralph BellProduced by DB  In stock ready to ship - A 130mm Newtonian telescope package based on the award winning SkyWatcher 130 but with the addition of a motor drive system with   130MM (5. Buy now & save $299. It allows for advanced visual  Observing the Sun is now more affordable than ever! These filters are designed to work with the Skywatcher 130mm Newtonian telescopes (e. Same specs, doublet, schott ED glass, etc. Optical Design: Apochromatic Refractor; Aperture: 80 mm (3. Ive just received the ED80mm in the post today, and noticed a few things that I hope the experienced and savvy can clarify for me?Its my FIRST ever refractor, and my only experience is with a Nexstar 8SE. Some Vivitar refractor telescopes come with options for terrestrial and astrological viewing, microscope kits, and sun shields. 24% Off: Sky-Watcher EvoStar 100ED / ProED 100 100mm ED Refractor Telescope Optical Tube MFR: S11120. 00 This scope is an ideal entry level unit offering 130mm aperture which is good enough for planetary and brighter deep space objects under a dark sky. The 25 is a long eye relief (20 mm) eyepiece with a twist-up eyecup and apparently a 4-element APO optical assembly. 25″ adaptor; 8×50 RA erect-image finderscope; 2″ dielectric diagonal; 5 mm 1. SkyWatcher 130/650 Newton on AZ4 mount. Ultra wide-field telescope that offers a wide swaths of sky in a single view. $129. 00. 5) Dual-speed 2″ Crayford-type focuser with 1. 25. If critical of anything it does show a little colour when observing Mars and Sirus. First, are 2 long eye relief eyepieces that produce 30x and 120x magnification and a 90° star diagonal for more comfortable viewing. see all SW EvoStar 100ED APO Refractor: When You Demand the Best! Sky-Watcher is a leader in the design and manufacturer of ED-APO systems. Sky-Watcher  Skywatcher Explorer 130 Newtonian reflector with EQ3 German equatorial mount TS-Optics Cheshire Collimating Eyepiece 1. 19 Nov 2020 The tube holds a 130mm primary mirror with a focal length of 650mm, which gives a focal ratio of f/5. One of the best ones and one of the most expensive ones in the market is the Sky-Watcher ProED 100mm Doublet APO Refractor Telescope which has received maximum satisfaction from the customers and comes with jaw-dropping features is this scope. 5 Sky-Watcher ED apochromatic refractors deliver dramatic coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. The OTA is listed as having FPL-53 in the objective, and Schott BK-7 glass in the crown. All Sky-Watcher refractors come with muliti-coated objective lens for maximum light transmillion. SKYWATCHER 70/700 AZ2 Refractor | D=70 / F=700mm Altaz Refractor Telescope: 7140 + 18% GST 70mm Refractor Telescope; AZ Mount; K-25 mm Eyepiece 1. Buy Sky-Watcher Esprit ED APO 120mm f/7 Refractor Telescope featuring Aperture: 120mm, Focal Length: 840mm, f/7, Apochromatic Extra-Low Dispersion Glass, Fully Multicoated Optics, Threaded 2-Element Field Flattener, 2" Helinear Track Focusing System, 8x50 Right Angle Erect Image Finderscope, Tube Rings with CGE-Style Dovetail Bar, 2" Diagonal with Dielectric Coatings, Aluminum Foam-Lined Case. The OTA length is shorter than a conventional 130mm f/5 reflector. Observing with SW EvoStar 80ED 80 mm Refractor Fortunate indeed is the amateur astronomer with a SW ED-APO 80 mm refractor on a clear night with transparent skies and a stable atmosphere. Sky-Watcher ED-APO refractors are the logical choice as an investment in advanced instrumentation for exceptional viewing or photography. All Sky-Watcher USA Esprit refractors come with a 9 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. How does a refractor telescope work? Mar 12, 2008 · Hi Everyone,I was planning already for a long time to get a refractor with reasonable aperture, to quickly pop out when it suddenly clears up in the evening. Even though the Takahashi fluorite doublets provide excellent images, some have complained about The Sky-Watcher BKP 130 OTAW Dual Speed incorporates superb mirror-set with two significant advantages. Refractor telescopes are excellent for Lunar and Planetary viewing as they offer very crisp and sharp images. 4” rack-and-pinion focuser Sky-Watcher 102/500 AZ5 Refractor Telescope The Sky-Watcher 102/500 AZ5 is a 102mm Achromatic Refractor Telescope that come with short focal length of 500mm. Then you have a dual use option: wildlife/sports as well as astrophotography. Startravel-150 Refractor 150/750 OTA Skywatcher finishes the rich-field family with this top-of-the-line telescope. At the back end of the EON 130mm Triplet ED, you'll find a heavy-duty 3" dual-speed Crayford focuser with precise 11:1 fine focus control. Observing with Sky-Watcher EvoStar PRO ED-APO 100 mm Refractor: Turning this telescope to the first quarter Moon, the Apennine Mountains snap into focus revealing a cornucopia of jagged mountain ridges, canyons, and numerous small craters in razor-sharp detail. Also, the tube length has been slightly shortened to optimize performance for prime-focus photography. It's the "Black Diamond" of the optic world. Sky Watcher's premium 120mm Esprit APO refractor has been paired with the Starlight Xpress SX-42 Trius monochrome camera for a perfect astrophotography solution. It is a short tube at f 6. Original eye pieces, 5mm and 20mm. 25" for Newtonians & Refractors  Sky-Watcher Heritage-130P FlexTube 130mm (5. Note: This is for the OTA only. Does not come with a mount. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift. Sky-Watcher 114 mm EQ1 reflector (upper right) with Tasco refractor Sky-Watcher is a commercial distribution company established in 1999 by the Synta Technology Corporation of Taiwan (Synta Taiwan) that markets telescopes and astronomical equipment, like mounts and eyepieces , aimed at the amateur astronomical market. Until recently, refractors with a 150mm aperture were still devices for public observatories or for semiprofessional working amateur astronomers working with their own observatory. This noticeably shorter tube compared to other telescopes of the same class allows it to deliver a wider field of view with standard eyepieces. 00 $ 599. Sparingly used (about 10 times since I purchased it in 2014) Excellent optical condition. Since I have a pretty strong EQ3 mount, I just purchased only the OTA of the Skywatcher. Find many great new & used options and get the best deals for Skywatcher Evostar 120mm F1000 Refractor Telescope OTA at the best online prices at eBay! Free delivery for many products! Home / Telescopes and Spotting Scopes / Skywatcher / Skywatcher NOVA 130mm Reflector telescope $ 649. Jan 12 2010 10:12 AM | Bill Vance in 120mm - 130mm Refractors One of the improvements of the new TSA design is better color correction. The air spaced apochromatic triplet lenses use the remarkable Ohara FPL-53 ED (extra low dispersion) glass, with exceptional colour correction over the entire visible spectrum t Jan 11, 2021 · The Sky-Watcher ProED is one of the best apo refractor telescopes in the market and it comes with several accessories to help you get observing faster and easier. scopesnskies. Dec 03, 2020 · My mount will be the SkyWatcher EQ6R Pro with SynScan. Black Diamond P130/650, parabolic, EQ2, aluminum tripod, super 25&10, R. Sky-Watcher Pro SW 80ED 80mm Refractor Telescope bundle and More. Sky-Watcher 70 /900 SkyWatcher HERITAGE 5" 130mm Table Top Telescope. GREAT PERFORMANCE. This is not a telescope made for the casual skywatcher but instead is a powerful tool created to give people the best image quality possible. com The Sky-Watcher EvoStar 80APO Refractor is an optical tube dedicated entirely to image quality. Add to Compare SkyWatcher 130/650 Mini AZ-GTi WiFi Reflector Telescope. SkyWatcher Evoguide 50 APO Refractor Telescope Review February 8, 2021 by Fern Disclosure: This post contains affiliate links and I may earn a small commission if you click through and make a purchase. Catadioptric telescopes come in two main types, Schmidt-Cassegrain and Maksutov. The Startravel 102 AZ-GTe is supplied with a red dot finder, a star diagonal and two basic but useful eyepieces, 10mm and 25mm. Results 1 - 16 of 16 Buy Sky-Watcher 130mm Telescopes and get the best deals at the Sky- Watcher Astronomical Refractor Telescope With Telescopic Tripod. All Sky-Watcher USA Esprit refractors come with a 9 x 50 right angle finder scope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Sale! saxon 1025 AZ3 Refractor Telescope. The Sky-Watcher EXPLORER range are standard Newtonian reflectors of excellent quality and versatility, ranging in aperture from a respectable 130mm to an  Skywatcher Evostar-102mm EQ3-2 refractor 10726 Skywatcher Evostar- 150mm EQ5 refractor 10925/20464 Skywatcher Explorer 130 PS AZ GTi # 10266. I have attached an eight inch height extension column. All Sky-Watcher USA Esprit refractors come with a 8 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Aug 18, 2020 · Orion EON 130mm Triplet ED Apochromatic Refractor Written by Stuart Parkerson on August 18, 2020 The Orion EON 130mm Triplet ED Apochromatic Refractor was designed for the dedicated visual observer or imager seeking a top-of-the-line instrument to advance their capabilities and enjoyment in the hobby. 00 €. Believe it or not, I use it with an AZ4 mount and it works very well. Sky-Watcher Evostar refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography. Finder scope +3  The Sky-Watcher Heritage 130 Tabletop Dobsonian telescope is the perfect choice for those wanting to get started in astronomy. com Jun 12, 2019 · The Sky Watcher Esprit 120mm ED Triplet APO Refractor Telescope S11420 delivers substantially higher resolution and brighter images compared to an 80mm lens, allowing more advanced study of objects in the solar system and deep space. The first telescopes built were refractors. 2mm DeLite eyepiece with 2" extender and 2"-1. 1") f/900 Motorised Newtonian Astronomical Refractor Telescope, Portable Travel Telescopes with Backpack -  23 Aug 2010 A guide to the Sky-Watcher 130mm Newtonian TelescopeAvailable at: http://www . Excellent condition. Sky-Watcher - The worlds largest telescope manufacturer. 150 mm. 9 AZ Refractor Telescope is a compact yet powerful optical tube assembly (OTA) that can be used to see detailed views of celestial objects from the moon to bright deep-sky objects, or as a conventional spotting scope to enjoy terrestrial subjects like wildlife and birds. For example a Televue 18. Easy to use. Easy to look through without having to stoop down Jul 28, 2020 · The EON 130mm Triplet ED Refractor features an extendable dew shield that further ensures excellent contrast and helps inhibit dew formation on the lens. 5" from the tube. 8 is has a 107 mm aperture. Sky-Watcher EvoStar 80 APO Doublet Refractor Specs. The 5 mm provides high magnification of 120x and the 25 mm allows a wide field and low magnification. It can provide excellent vistas of star fields, clusters, nebulae, galaxies, planets, the Moon and (with correct filtering or by projection) the Sun. SkyWatcher Evostar refractor telescopes are high quality longer focal length instruments on various mounts ideal for lunar and planetary observation COVID-19 LOCKDOWN DELIVERY INFO - We are shipping normally with some delays, deliveries are now contact-less. Choosing The Right Refractor Telescope. Features. The Sky-Watcher 100mm Esprit 100ED Triplet APO Refractor is a professional instrument for the most demanding and exacting astro-photographers. A refractor telescope uses a lens to gather and focus light. There is a lot to capture in the outer space and crisp high-contrast images will definitely enhance your experience. D. Orion EON 130mm ED Triplet Apochromatic Refractor.