0000012862 00000 n As low as $ 3.71 /Month. This scope, in my opinion, fixes both issues and didn't cost too much much more! It gives very good wide views with nice, sharp images at powers up to about 60x, then shows some color fringing at higher powers with more color as power increases. By: Skoro Astronomy and science equipment for all skill levels and applications including professional telescopes and child friendly telescopes. Ulverston. 0000006868 00000 n This is not recommended for shared computers, Zenithstar73-Which screes need to be loosen? Optics:9 Mount:7 Ease of Use:9 Value:10 0000005307 00000 n Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=464320, Overall Rating: 9 The focuser is fully rotatable and includes a 1.25" adapter. 0000076871 00000 n In The Box. Made by Synta in China and imported by Orion, this instrument is by far the lowest -priced apochromatic (false-color-free) refractor available in its aperture range. With over 2,100 star pairings listed with coordinates, color, and interesting information about every pair, Double Stars for Small Telescopes is an essential addition to the library of every astronomy enthusiast. 248 pages, 8 1/2 x 11 ... Orion Express 80mm Refractor ISSUE 7 DECEMBER 2005 GROUP TEST: IMAGE-STABILISING BINOCULARS Zenit Bst 16x40 83% Canon 18x50 IS 92% Russian BS 16x50 49% FIRST LIGHT Eclipse MAK6 150mm F12 Mak-Cass ISSUE 8 JANUARY 2006 GROUP TEST: INTERGRATING VIDEO CAMERAS Mintron 12V1-EX 85% Watec 120N 83% . Orion GoScope 80mm Backpack Refractor Telescope. 0000005531 00000 n Also these short Megrez's need field flattners and filters to attenuate suspect optics. Shop Telescopes By Type. Using a nominal 7mm as the diameter of the dilated pupil, we can express the light grasp of the 80mm as 131x the grasp of the unaided eye, and 204x as the light grasp of the 100mm. Orion GoScope 80mm Backpack Refractor Telescope Kit. AstroBin is an image hosting platform and social network for amateur astronomers and astrophotographers. On almost every clear evening, I'll spend some time with this scope gazing at the sky from the "shaded" areas of my light-polluted suburban back yard. CR356R. This special edition has been designed specifically for aspiring astronomers living south of the equator. This book explores the planets, stars, galaxies and nebulae observable from the southern hemisphere. ★★★★★1. This is the third edition of Phil Harrington's popular and comprehensive guide to astronomical equipment, written for both new astronomers as well as experienced amateurs. Orion Transporter 70mm Min-EQ Refractor Telescope, Orion GoScope 70 Backpack Refractor Telescope, Orion EON 80mm ED Apochromatic Refractor Telescope: 07798: 4.57" Orion 102mm Maksutov-Cassegrain Telescope, Orion AstroView 100 Equatorial Refractor Telescope, Orion SkyView Pro 100 Refractor Telescope, Orion 80ED and 100ED Refractor Telescopes . Imaging Camera: Starlight Express SXVR H-694C Guide Scope: Orion 80ED 80mm f/7.5 APO Refractor Guide Camera: Orion StarShoot This image is an integration of ten 60 second sub exposures. Check Gift Card Balance Check Gift Card Balance. 0000068959 00000 n Mars at 160x reveals some surface details, but they're not clearly defined; mostly splotches of darker landforms. In this sweeping work of narrative science, Levesque shows how astronomers in this scrappy and evolving field are going beyond the machines to infuse creativity and passion into the stars and space and inspires us all to peer skyward in ... If there ever was a telescope that is as beautiful to look at as it is to look through, the Revelation Astro refractor is it! The brightness gives the telescope the ability to target distant objects in the deep sky, so that you can see things like the Orion Nebulae that smaller telescopes would likely miss. It is low-cost, has sold in its tens of thousands, and is available in almost every country. Here, ETX expert Mike Weasner reveals everything any amateur astronomer ever wanted to know about the telescope. The high-quality design adds fine focus adjustment ability with a ratio of 11:1 to your refractor. Orion ShortTube 80 Refractor Telescope OTA Features. This book takes a look at traditional telescopes built by the great instrument makers of the 18th and 19th centuries, particularly the dynastic telescope makers, including Dollond, Alvan Clark, Thomas Cooke & Sons, and Carl Zeiss. 0000073797 00000 n 0000099574 00000 n Photo Express. 0000009024 00000 n Under a very dark sky, one can try to find the North America Nebula, Pelican Nebula, and Veil Nebula (see p. 47). These are difficult nebulae and are only barely visible on this photograph as weIl. It will be a good compliment to my Nexstar 11. 0000011315 00000 n TS-Optics Tube Rings for Telescopes with D=356 mm Tube Diameter - metallic-red. Viewing Saturn at that power is a treat. Provides a guide for beginning stargazers, including sky maps and constellation charts, identification tips, and space facts and jokes. TS-Optics Tube Rings for Telescopes with D=303 mm Tube Diameter - metallic-red. The Cassini Division is visible, as well as the planet's shadow on its rings. . Price: $3,499.99. I cant wait to see the Express 80 in person! I mean as we all know by now its a Williams Optics scope but with a nicer paint scheme (I love the black and silver) so I guess it was a no brainer. United Kingdom. Refractor telescopes use an optical design that relies on a series of lenses to focus light to a single point. In-Stock - Available at warehouse ships in 1-2 weeks. This volume is the proceedings of IAU Symposium No. 118 on "Instrumentation. and Research Programmes for Small Telescopes", where small telescopes were defined as those ground-based instruments with apertures less than 1.5m. 0000064267 00000 n E-mail webmaster to report abuse, problems, or comments.webmaster to report abuse, problems, or comments. M31 shows a bright central bulge, with fainter extensions trailing off from both sides, but no spiral form or dust lanes. $104.99. And for the astro hobbyist who already owns a bigger telescope, the ST80-A makes a wonderful grab-and-go second telescope to have on hand! Weight: 5 (Veritable Vote) trailer <<3C8E14758D7946C7AFE5E24ACFCF3948>]/Prev 237074>> startxref 0 %%EOF 84 0 obj <>stream This book contains everything an astronomer needs to know about binocular observing. The book takes an in-depth look at the instruments themselves. That’s where Choosing and Using the New CAT comes in. This book guides even the most greenhorn astronomer past the pitfalls encountered on the path to enjoying the beauties and mysteries of the universe. This book is based around the author’s beautiful and sometimes awe-inspiring color images and mosaics of deep-sky objects. LA12 7LR. Alan Dyer had a very nice review of the Megrez 80 in Sky and Telescope that indicated impressive color correction for an achromat and a flat field for photography. Well, I just ordered the express 80. 2 Focus wheel Mounting block Objective lens 1.25" Eyepiece adapter Focuser drawtube Focuser rotation thumbscrew Lens shade Figure 1. $59.00. Orion Limited Edition SkyQuest XT8 Classic Dobsonian Bundle. From the reviews: "I recommend it to anyone with an interest in binary stars who wants to learn more about these fascinating objects." (Jocelyn Tomkin, The Observatory, April 2005) ShortTube 80 OTA ; 8x40 finder scope with bracket By: Anonymous (xxx.xxx.16.103) The 80mm ED is available as the Optical Tube Assembly only . Out of stock. I can't wait to see the Express 80 in person! $599.99. Histogram. The Orion GoScope 80mm TableTop Refractor comes packed with quality accessories so you and your family will be ready to stargaze with it right out of the box, assuming the skies are clear of clouds! May 13, 2017 - Explore Lance Middleton's board "Refractor Telescopes" on Pinterest. 0000003017 00000 n 100,76 EUR*. Box 1815, Santa Cruz, CA 95061 Providing Exceptional Consumer Optical Products Since 1975 IN 259 Rev. �20�K��Pu����#7���a� *��D;���m���֮��'`��t;�����t���-I. Description 1 Optical tube assembly Explore Scientific 80 mm Triplet ED APO Refractor w/ Accessories. I have not seen any evidence that the William Optics scopes have more false color than the Vixen short tube. M27 Dumbbell Nebula - 102mm Explore Scientific refractor, taken on a night with 75% moon. Meade Series 6000 80mm ED Triplet APO Refractor. ©2019 by Excelsis Consulting. These are times when a small “grab ’n’ go” telescope, or even a pair of binoculars, is the ideal instrument. And this book can guide you in choosing and best utilizing that equipment. 0000063132 00000 n Simi-apo does mean something much better color correction then my previously owned st80 which I spent considerable time colliminating. Orion was one of the first mainstream companies to introduce an 80mm apochromatic refractor telescope for such an incredible price. Several functions may not work. 0000005998 00000 n h�b```b``y������� Ȁ ��@Q��N I purchased this scope for duty as my backyard grab and go. The cool part about this one is that its carbon fiber so it looks nice. 0000004215 00000 n A thought provoking study of the powerful impact of images in guiding astronomers' understanding of galaxies through time. As low as $ 1.9 /Month. The superb ED optics and the triplet objective nearly eliminate chromatic aberrations. Explore Scientific's broad selection of refracting telescopes includes apochromatic refractors ranging in aperture from 80mm to 165mm, achromatic telescopes perfect for astronomy outreach and beginner refractors from brands like National Geographic and Discovery that are great for backyard . 0000002135 00000 n $219.99. This book lifts the veil of mystery from the creation of deep space photographs and makes astrophotography affordable and accessible to most amateur astronomers. Equipment: Skywatcher NEQ6 pro mount & Equinox 80mm refractor, Atik 383L+ camera, motorised filter wheel and Astronomik Ha LRGB filter set. This telescope has shown hundreds of backyard astronomers over the years what a portable and highly versatile APO refractor is truly capable of. Shop Now. This book acquaints readers with these facts and findings--and with what they can tell us about the lives of galaxies over cosmic time, from their emergence shortly after the Hot Big Bang to their ongoing gyrations and transmutations. Sold as an Optical Tube Assembly only as shown above with 2" Focuser, and Reducer to 1.25" (56,374 Bytes). It will be a good compliment to my Nexstar 11. This is essentially the same telescope as the WO Zenithstar and Orion Express models. Overall Rating: 10 Found inside – Page 94Bresser refractor telescope , focal length 1,000mm , objective diameter 120mm , boxed , complete with accessories . ... 92 Orion Optics . ... Sky - Watcher Startravel 80mm refractor , EQ mount , comes with accessories , £ 70 . E-mail webmaster to report abuse, problems, or comments. Found inside – Page 20Spring Objects for the Small Glass HAVE YOU REALLY SEEN THE ORION NEBULA ? ... Far below ( south is a better way to express it ) the bowl of the Dipper , and just above Leo , is the star Xi Ursae Majoris . I leave it set up near the sliding glas door in the den and it's light and compact enough to easily carry around. Orion Transporter 70mm Min-EQ Refractor Telescope, Orion GoScope 70 Backpack Refractor Telescope, Orion EON 80mm ED Apochromatic Refractor Telescope: 07798: 4.57" Orion 102mm Maksutov-Cassegrain Telescope, Orion AstroView 100 Equatorial Refractor Telescope, Orion SkyView Pro 100 Refractor Telescope, Orion 80ED and 100ED Refractor Telescopes . I leave it set up and stored in a Telegizmo cover under my covered back porch. Click on image to see enlarged view (108,275 bytes) The first moderate cost Apo Company Seven chose to place on line! Explore Scientific's broad selection of refracting telescopes includes apochromatic refractors ranging in aperture from 80mm to 165mm, achromatic telescopes perfect for astronomy outreach and beginner refractors from brands like National Geographic and Discovery that are great for backyard . Please re-enable javascript to access full functionality. Various sources claim that this is the same scope as the Antares Sentinel and the . Despite its small aperture and short focal length, this little jewel takes magnification very well, making it suitable for planetary use as well as scanning the broad star fields of the Milky Way. 42 0 obj <> endobj xref 42 43 0000000016 00000 n If you look in the WO yahoo group WO claims that they are not the same and that the ZS80 is a propritery design, Community Forum Software by IP.BoardLicensed to: Cloudy Nights. 0000096126 00000 n current price $219.99. Just ordered Orion Express 80mm! My highest power eyepiece is a 6mm Televue radian, which I'll couple to a 2x Barlow to yield 160x. Check out Bizrate for great deals on popular brands like Brookstone, Carson and Celestron. View details. This colorful edition explores the constellations with young readers, guiding them to dozens of galaxies, nebulae, and star clusters. They provide considerably brighter views over any 60mm or 70mm refractor and have brightness equal to an 80mm. Date: 10/15/2005 08:03:56 pm PST Best prices on Orion refractor in Binoculars & Telescopes. Orion Express 80mm Refractor Telescope Optical Tube Assembly: IN 259: 09801: Orion Observer 70mm Altazimuth Refractor (Addendum to the Instructions - Improved Accessory Tray and Bracket for Tripod) IN 169: 09801: Orion Observer 70mm Altazimuth Refractor Telescope: IN 095: 09802: Orion Observer 70mm EQ Equatorial Refracting Telescope: IN 096: 09802 Imaging telescopes or lenses: SVBONY SV503 80MM Doublet SVBONY SV503 Imaging cameras: QHY183c QHY Mounts: SkyWatcher EQ6-R Pro EQ6-PRO Guiding telescopes or lenses: SVBONY 50mm Guidescope SVBONY 50mm Guiding cameras: Zwoasi120mm mini Focal reducers: Orion 0.8X Focal Reducer Orion 0.8x Filters: ZWO Duo Narrowband 1.25 ZWO Duo Auther:frankszabo75 In the lens, the "extra low dispersion" glass FPL53 from Ohara (Japan) is used, combined with lanthanum glass. Optics:9 Mount:7 Ease of Use:10 Value:10 0000101866 00000 n ©2019 by Excelsis Consulting. 0000013647 00000 n M8, Orion 80mm Short-Tube refractor, H-a filter. Orion 80mm ED F/6 CF Triplet APO Refractor Telescope has a focal length of 480mm (f/6.0) delivering fast, unobstructed optics that yield detail-rich visual views of the solar system and wide-field deep-sky objects alike. . Price: $275.00. 39 Market Street. Congrats, and let us know how it performs!! Condition is used. Orion Express 80mm Refractor ISSUE 7 DECEMBER 2005 GROUP TEST: IMAGE-STABILISING BINOCULARS Zenit Bst 16x40 83% Canon 18x50 IS 92% Russian BS 16x50 49% FIRST LIGHT Eclipse MAK6 150mm F12 Mak-Cass ISSUE 8 JANUARY 2006 GROUP TEST: INTERGRATING VIDEO CAMERAS Mintron 12V1-EX 85% Watec 120N 83% . Despite its small aperture and short focal length, this little jewel takes magnification very well, making it suitable for planetary use as well as scanning the broad star fields of the Milky Way. iOptron 80mm f/5 Achro Refractor Telescope (OTA Only) 80mm Achromatic Doublet Refractor, . 0000012067 00000 n The Orion 2" Dual-Speed Crayford Refractor Focuser provides a simple, yet profound performance upgrade for your favorite Orion refractor telescope. The Orion 80 ED is a sweet scope all right. PinchedOptics. 0000101501 00000 n As for the use of flatteners, many use them in the form of a reducer for the extra speed while maintaining a flat field and on all brands of scopes from Takahashi's to Orion ED 80'S. Found inside – Page 32BROMO BALI MALAY PENINSULA AND JAVA TRAVEL BY RAIL $ 3995 23 days $ 3195 15 days ORIENTAL ECLIPSE EXPRESS 737 ... FOR SALE - Dobsonian 10 " f / 5.6 Newtonian telescope , Star Instruments optics , 20x 80mm finder , complete with 7.4 to ... Whether you are looking to explore the structure of Saturn's rings or the Moon's surface, this refractor will help you spot those bright deep sky objects. Craig Zerbe features information about video astronomy. The Orion 400mm, f/5 achromatic refractor delivers wide-field views of deep-sky and solar system objects; Includes 1.25" focuser, dust cap, and Starry Night SE digital download. A no-nonsense f/7.5 apochromatic refractor telescope offered at an unbelievably low price Transmits spectacular views of deep-sky delicacies as well as closer solar system targets for visual enjoyment or astrophotography pursuits 80mm refractor objective doublet includes one element of high-quality FPL-53 ED or extra-l Equipment: FSQ106ED, NEQ6 Pro, QHY9M CCD, Baader 2″ filters, Guided with Orion miniguider and QHY5M camera through the guideport. Stellarvue Finderscope Mounting Rings - SCT SV-R50SCT. TS-Optics CNC Aluminium Tube Rings for telescopes with 80mm diameter. 0000098709 00000 n I have not seen any that measure up to the Vixen A80SS 80mm, f/5. Date: 09/22/2005 04:51:05 pm PST This is essentially the same telescope as the WO Zenithstar and Orion Express models. This package is light, well balanced, and serves my purposes perfectly. Orion Express 80 EQ 80mm Refractor Telescope. Optics:9 Mount:7 Ease of Use:9 Value:9 0000099117 00000 n Orion GoScope III 70mm Refractor Travel Telescope Kit. The TS 80mm f/7 ED refractor is ideally suited for astrophotography: The precise focuser and the light-sensitive optics make the 80 mm ED-refractor a good telescope for astrophotography. 0000010556 00000 n I've missed 2 of them on Astromart already....might just have to buy a new one. 0000001156 00000 n 0000004797 00000 n Orion StarSeeker IV 80mm GoTo Refractor without Controller. In Stock. Weight: 1 (Unreliable Vote) But because of such riches, it is easy to get lost when trying to decide on what eyepieces to buy. This book will help readers choose the best eyepiece for them now and continue to serve as a treasure trove of information for years to come! Refractor telescopes can be generally divided into two major types: ED and APO optical designs. The imaging quality sets standard in this class. Above: Orion 80 mm ED Apochromatic Refractor Telescope. M16, 80mm Orion Short-Tube refractor, H-a filter. Orion 9946 ShortTube 80 T Refractor Telescope,New product-1 - www.the-bikes.com LX200 ACF 10". Shipping costs. The orion ct80 80mm refractor starshoot autoguider package makes this easy by including everything you need to start taking longer exposures the orion awesome autoguider refractor package includes orion shorttube 80 refractor, starshoot autoguider, 1.25 extension tube for focus , guide scope rings and guide scope ring mounting bar. 0000006427 00000 n Orion Transporter 70mm Min-EQ Refractor Telescope, Orion GoScope 70 Backpack Refractor Telescope, Orion EON 80mm ED Apochromatic Refractor Telescope: 07798: 4.57" Orion 102mm Maksutov-Cassegrain Telescope, Orion AstroView 100 Equatorial Refractor Telescope, Orion SkyView Pro 100 Refractor Telescope, Orion 80ED and 100ED Refractor Telescopes . Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=457034. With a focal length of 600mm (f/7.5), the "ED80" is wonderfully suited for visual applications on both solar system and deep-sky objects as well as for prime-focus astrophotography and CCD imaging. M16, 8" Celestron SCT telescope, UHC Filter. A red-dot Orion EZ Finder II reflex sight lets you point the GoScope 80mm with precision, while an included 90° star diagonal provides a . Most of the Messier Catalog is easily visible with the Orion Observer 80ST. I have not seen the polar caps, for instance. Orion Express 80mm Refractor Telescope Optical Tube Assembly: IN 259: 09801: Orion Observer 70mm Altazimuth Refractor (Addendum to the Instructions - Improved Accessory Tray and Bracket for Tripod) IN 169: 09801: Orion Observer 70mm Altazimuth Refractor Telescope: IN 095: 09802: Orion Observer 70mm EQ Equatorial Refracting Telescope: IN 096: 09802 The book describes — How to shoot and process still image “nightscapes” – images of landscapes taken at night by the light of the Moon or stars … and … How to shoot and assemble time-lapse movies of the stars and Milky Way ... Using a 25mm Plossl for 19.2x, the Pleiades are breath-taking. These pursuits coexisted in the nineteenth-century observatory; this collection surveys them as a coherent whole. Shop with Explore Scientific for high quality eyepieces, telescopes, astrophotgraphy gear, binoculars, and microscopes backed by a warranty you can trust. Free Express Shipping! Orion Express 80 The Express 80 is a compact, light, wide-field scope on Orion's EQ-2 GEM tripod mount. Revolution Imager. Use Bizrate's latest online shopping features to compare prices. The Orion GoScope 80mm Backpack Refractor Telescope goes wherever you go, whether your interest is daytime scenic viewing, nighttime stargazing, or both. The Observer II 70 Altazimuth Refractor is delightfully easy to operate. Up for sale is really great Orion Express 80mm f/6 refractor. Orion® Express™ 80mm Rich-Field Refractor - any opinions on this item Equipment Discussions Celestron Ambassador 80AZ 80mm f/10 Refractor Brass Telescope Vintage Sea-Faring Styling, . Astrophotography for Amateurs presents equipment and techniques, features practical hints and tips from the experts, including coverage of traditional "wet" photography, CCD imaging, and computerized image enhancement. SKU: S11170. Value Added Tax Number: GB 621353572. . 0000063956 00000 n The Orion GoScope 80mm Tabletop Refractor has an 80-millimeter refractor that captures a large amount of light to give you the benefit of very bright images. Despite its small aperture and short focal length, this little jewel takes magnification very well, making it suitable for planetary use as well as scanning the broad star fields of the Milky Way. This 160-page book from Michael E. Bakich, retired Astronomy magazine Senior Editor, introduces readers, from novice to experts, to observing the night sky with accurate, easy-to ready star maps optimized for use with red flashlights. Orion GoScope 80mm Backpack Refractor Telescope. Now you won't, thanks to Orion's amazingly affordable 80mm ED refractor. Celestron EclipSmart Solar Telescope 50 with Backpack. orion ® Express ™ 80mm refractor telescope #9780 Optical Tube Assembly. I have also used my Zenithstar 80 for photography and do not see any of the "extreme" chromatic abberration alleged. View details. Comments. Being marketed as a semi-APO, it's a very well made achromat that shows little to no color at low and moderate magnifications. Stellarvue R50E - 50mm Finderscope Rings for SV Hinged Mounting Rings SV-R50E. Special order. 71,43 EUR*. Explore Scientific ED115mm f/5.5 Air-Spaced APO Triplet CF Refractor (OTA Only) SKU: FPL53-115CF-01. * excl. The 80mm aperture is pretty wide for a refractor. 0000005591 00000 n Page 1 Manual orion Express 80mm ® ™ refractor telescope #9780 Optical Tube Assembly customer support (800)‑676‑1343 E‑mail: support@telescope.com Corporate Offices (831)‑763‑7000 P.O. The Double Cluster - 80mm Orion Short-Tube refractor. Both offer excellent color and contrast, but APO or apochromatic telescopes boast perfectly refined color and superior contrast. Kind of difficult to assert that a well made f/6 achromat would have more CA than a well made f/5 achromat. The new Photoline apo from TS-Optics offers a very good performance in virtually every area of observation and astrophotography. At $429 + shipping, the ED 80 comes with a 2-inch Crayford focuser , 1.25" adapter, a 80mm and a focal ratio of f/7.5, yielding a focal length of 600mm. Orion Transporter 70mm Min-EQ Refractor Telescope, Orion GoScope 70 Backpack Refractor Telescope, Orion EON 80mm ED Apochromatic Refractor Telescope: 07798: 4.57" Orion 102mm Maksutov-Cassegrain Telescope, Orion AstroView 100 Equatorial Refractor Telescope, Orion SkyView Pro 100 Refractor Telescope, Orion 80ED and 100ED Refractor Telescopes . The Orion ed80t-cf is a scope I'm very familiar with, since it was actually my first astrophotography telescope, and I still use it to this day! About. 80mm Refractor Telescopes, Celestron 150 mm Aperture Refractor Telescopes, Celestron Refractor Telescope, Vivitar Refractor Telescope, Orion Refractor Telescope, Bushnell Refractor Telescopes, 60mm Refractor Telescopes . 0000009861 00000 n Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=457510, Overall Rating: 9 The Crescent Nebula by Matt Foyle, Derbyshire, UK. Here is a complete telescope you can take on a plane, train or automobile without breaking your back — or your bank! The Express 80mm optical tube assembly. 0000001537 00000 n Here is a complete telescope you can take on a plane, train or automobile without breaking your back — or your bank! I've gotten a William Optics VR-1 minus violet filter that I keep on the diagonal, and it virtually eliminates all color even at 160x, which is this scope's practical limit. A refractor is a classic telescope design that uses a collection of lenses to gather and focus light. This is Orion's take on the 80mm refractor. I haven't yet taken it to a dark sky site, but look forward to using it under better conditions than my neighborhood affords. 0000063903 00000 n al. %PDF-1.4 %���� 0000005418 00000 n Laughlin shows us how the most fundamental laws of physics are in fact emergent. A Different Universe is a truly mind-bending book that shows us why everything we think about fundamental physical laws needs to change. 0000003654 00000 n I originally had an ST80 but the build quality was quite lacking and the false color at f/5 was just too much for me. 0000007484 00000 n 0000064038 00000 n Free shipping on most orders. 0000102263 00000 n Price: $699.95. But most of the WO scopes in the so-called semi-APO arrangement, have a lot of color fringing from the photos I've seen of the moon, et. All Services. The focus of the optical design of this telescope is to provide a wide field view, making it easier to view dimmer deep space objects. Packed with practical advice gained from years of firsthand stargazing experience, this book demonstrates exactly why ShortTube 80 has remained a firm favorite among amateur astronomers for over three decades, and why it is likely to remain ...
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