NAT. This M12x0.5 thread is found on webcams and a few other small cameras, and it was common when electronic imaging began and webcams were popular with planetary and lunar imagers. The original owner purchased it without realizing how large and heavy it was. 5 out of 5 stars (4) 4 product ratings - Meade Infinity 50mm Altazimuth Refractor - 209001. A webcam thread is officially called an "S thread," but few in astronomy use this term. Thank you both for a PSA that has literally preserved my sanity. For the best experience on our site, be sure to turn on Javascript in your browser. Free shipping. B270 glass is equivalent to BK7 in performance and optical quality. We are glad to hear that you found this article useful. Meade SCTs of 12" and greater aperture use 3.25"-16 threads. Astromart.com is the leading portal for astronomy news, classified ads and telescope reviews. Found on some intermediate-sized Maksutov telescopes sold by Orion, Sky-Watcher, and others. (44) 44 product ratings - Meade ETX-60 AT Refractor Telescope. Item #MEAD-1608-80-01 . What is the thread on the rear of the finder tube? The threads described in Section 4 and Table 1 are the most commonly encountered threads in amateur astronomy, but there are many more variations. Table 1 above summarizes the most commonly used threads in amateur astronomy in order of size from smallest to largest. Sort By : This standard is common throughout the world, though it is less common in the U.S. Astronomy components manufactured outside the U.S. usually use this standard. Olympus E-Series T-Ring Adapters Now Available! I don't know what the threads are for a 2" eyepiece barrel, but it appears to me that that's what the threads are in this focal reducer. The difference in off-axis performance of Meade's 12-inch RCX400 (top) and LX200 Schmidt-Cassegrain telescopes is apparent in these 5-minute exposures of M27, the Dumbbell Nebula, made with an SBIG STL-11000M CCD camera. $35,900. JavaScript seems to be disabled in your browser. I've been looking into adapters to fit a Takahashi FSQ-106ED, and see some things to add to your Table-2. For astronomy end users, however, the key specifications are as follows: The drawing in Figure 2 below shows the definition of these specifications. $8,999.99. Focal Length: 4064mm. Orion binoculars are known for quality optics at a great price. Celestron's 9.25" Edge HD OTA (only) and all other SCTs of 11" and greater aperture use 3.28"-16 threads on the rear cell and for accessories. We've detected you are using a browser that is missing critical features. Vixen Super Polaris telescope and mount. I was able to 3D print a part to meet my needs. Manish and Brian: There should be a revision to Section 2, "Table" and Section 4.3.4, about which size Celestron SCTs use the larger thread size. Astromart.com is the leading portal for astronomy news, classified ads and telescope reviews. Filter thread uses on Vernonscope filters and Brandon eyepieces, Used on some Borg/Vixen/Takahashi products and accessories, Pentax 'screw' thread, some Borg accessories, Used on some adapters and on the top of Baader Hyperion eyepieces (for camera adapters), as well as on some Takahashi accessories, Used on some Zeiss products and accessories. MEADE Lunar Observer Telescope and Camera Kit - Currys. 2017 Infiniti Q50 AWD All Wheel Drive 3.0t Premium 3.0T PREMIUM, SALE ALEKO WPG03 Deluxe Wooden Swingset with Covered Canopy, Slide, SALE! The thread specification for C and CS is the same. Very common in astronomy on barrels of 2" eyepieces and 2" filters. Manish holds a Master's degree in Electrical Engineering from Virginia Tech and an MBA from the Kellogg School of Management at Northwestern University. This book lifts the veil of mystery from the creation of deep space photographs and makes astrophotography affordable and accessible to most amateur astronomers. The diameter of 2" works out to 50.8mm, but the actual thread has a nominal diameter of 48mm. For all intents and purposes, Baader Planetarium's T2 (or T-2) threads are exactly the same as T threads and the terms are used interchangeably. Yes - astronomy threads are cut on precision CNC lathes. Home › Meade LX850-ACF 16 Inch f/8 Optical Tube Assembly with UHTC - 1608-80-01. Thanks for pointing this out Mike. Checking 'include nearby areas' will expand your search. It is very easy to read and contains much useful information. 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Meade Instruments 1010-60-03 LX200-ACF 10-Inch (f/10) 145K object Database Advanced Coma-Free Telescope with Autostar II Hand Controller 3.0 out of 5 stars 13 2 offers from $6,599.99 This telescope is available new for $2699, minus the $800 in accessories. FREE delivery: Nov 10 - 16 . MEADE ETX-90EC reflector telescopewith 4 eye pieces and camera and set up paperwork. A somewhat less common but equally frustrating issue occurs when threads that should match do not. Older Celestron SCT telescopes manufactured in the late-1970s and early-1980s use an SCT thread with a different pitch than 2"-24. The thread is actually 2.75", not 2.7". Meade 10" f/10 LX200 ACF Telescope with Field Tripod. New, larger alternative to the "T/T2" thread. For the best experience on our site, be sure to turn on Javascript in your browser. It's hard to explain but this opinion grew while I owned first an 8 inch and then a 10 inch Meade. 9 Speed Motor Drive Auto Star - Never Used. You state, "Celestron SCTs of 11" and greater aperture use 3.28"-16 threads on the rear cell and for accessories." Write a Review. Sign up for our newsletter to get exclusive deals, observing tips, and new product announcements. Sale! However, note that it is only the 9.25" Edge HD OTA that uses the larger 3.28" SCT thread; all other non-Edge 9.25" OTAs still employ the smaller 2" SCT thread. over a month ago Photo and Video Equipment for Sale Offered. Meade 2008-MAX-01 Meade 20" LX400 (f/8) Advanced Coma-Free on MAX Robotic German Equatorial Mount w/ Tripod Our Price: $34,999.00 Skywatcher SynScan Wi-Fi Adapter. Very common in astronomy on 5" – 10" SCTs from Meade and Celestron (except for the 9.25" Edge HD OTA). This list is long, but by no means exhaustive! You can also use whatever threaded parts you have at hand to try to figure out an unidentified thread. Consumers know that Meade Optics Inside means that what they see through our telescopes will be views that are detailed, crisp and full of contrast. AU $11.18 postage. This is the trickiest measurement because of the small differences between pitch sizes. $2,219.00 . And the 16-inch Meade Lightbridge just isn't that accessible any more, so we swapped it out for the Meade 12-Inch LightBridge instead The telescope features a four-inch XLT-coated lens and aperture that work together to highlight celestial bodies. However, these focusers usually work with the smaller 3.25" Meade thread without trouble, especially if the threads on the Meade scope are shimmed with a couple of turns of Teflon plumbing tape to ensure a good fit. Found on the focuser drawtubes of some Sky-Watcher and Orion Newtonian reflectors, Some small Takahashi telescopes and imaging accessories from PrimaLuceLab, Some telescopes from Vixen, Orion, and Sky Watcher, most notably SW's ED refractors, Some Borg accessories, GSO 2" camera projection eyepieces, Some Vixen refractors, some Borg accessories, Some William Optics refractors, TS-Optics telescopes, 2.5" Feathertouch focusers and some Sharpstar telescopes and accessories, Hexafoc focuser on some Bresser/Explore Scientific telescopes, some Omegon telescopes, Some Zeiss and Baader adapters, ZWO full-frame cameras and related accessories, and some Askar telescopes and accessories, 2.74"-24 (Male thread), 2.754"-24 (Female thread), Sky-Watcher Esprit telescopes, some TS-Optics and Omegon telescopes, and some Sharpstar telescopes and accessories, Some Sharpstar telescopes and accessories, Smaller GSO RC/Cassegrain telescopes, Celestron 80ED and 100ED scopes (discontinued versions). It's not uncommon to find a situation in which threaded accessories with the same thread from two reputable manufacturers – that might otherwise work well with every other thread they are tested with – simply refuse to play well together. Schmidt-Newtonian telescopes (6 to 10 inches). ISO Metric threads have dimensions specified in millimeters. For example, in some cases, Lumicon M48x0.75 (2" filter) threads simply slide into some Tele Vue 2" eyepieces, which have M48x0.75 threads inside their barrel, without threading at all! Found inside – Page 214Being an undriven telescope the Moon drifted across the eyepiece and the “blobs” moved in synchronization with the Moon: this ... Why not go mad and buy a 16-inch alt-azimuth Meade LX200 and put it in a garden shed with a roll-off roof? ACF (Advanced Coma-Free) Optics for maximum sharpness and clarity. If there's one article or guide to read on the Agena AstroProducts website, this is it. As with 1.25" eyepieces, most 2" eyepieces have barrels threaded to accept filters mounted in a cell. Or try to screw the finder tube into the rear SCT thread of your mid-sized SCT to see if it might instead be 2"-24 TPI. Add To Cart. This thread is found more often on telescope focuser drawtubes, reducers, flatteners, off-axis guiders, and other accessories. From an engineering point of view, there are many specifications that go into designing and manufacturing a thread. Usedwith larger-chip astronomy cameras to reduce vignetting. This is surprising from two premium U.S. brands. Includes Vixen-style, top-mounted accessory dovetail to readily … I've been very impressed by the only C11 I've tried, though. The photographic T-mount was introduced by Tamron (then known as Taisei) in the 1950s as a standard for camera lenses. A Review of the ZWO ASIAIR-Plus Controller, A 3D Printing Q&A with Astrodymium and BuckeyeStargazer, Selecting a Baader Planetarium Star Diagonal, A Guide to Choosing Astronomy Eyepieces for Binoviewers, Choosing a Magnifying Finder Scope for Your Telescope. He also holds a Ph.D. in engineering physics from McMaster University. It fits into my Honda Civic with minimal disassembly. This type of telescope can be used for studying deep sky objects including star clusters and remote galaxies. A former wireless communications consulting engineer and management consultant to various Fortune 500 companies, Manish started Agena AstroProducts in 2003. Best Portable 12 Inch Dobsonian Telescope Meade Instruments Lightbridge Plus Truss-Tube Dob. This standard also specifies coarse(UNC) and fine(UNF) threads. Out of stock. Found inside – Page 624The telescopes range in aperture from 2 to 16 inches and in price from less than $ 100 to $ 15,000 . Meade's 8 - inch and 10 - inch Schmidt - Cassegrain telescopes are used by many universities , scientific laboratories , and aerospace ... Save Big on new & used Telescope Eyepieces & Lenses from top brands like Celestron, Tele Vue, Meade & more. Meade Infinity 50mm Altazimuth Refractor - 209001. This M48x0.75 thread is a larger version of the standard 42mm T-thread. In astronomy, this thread is frequently found on smaller cameras or adapters included with these cameras. Manufacturing threads is precision undertaking, so you might think that mating two threaded parts with the same diameter and thread pitch would be a slam dunk. Color filter or light-pollution filters designed for 1.25" eyepieces have cells with male M28.5x0.6 threads that mate with the threadsinsidethe eyepiece barrel. $130. Found inside – Page 64SkySwap FOR SALE : Complete set of Meade research - grade Orthos with screw - in nebula filter included ... FOR SALE : Cave 10 - inch f / 16 Cassegrain with mount , drive , and slow motion on declination ; three finders – 60mm guide ... Found inside – Page 78Many large telescopes can accommodate 2-inch-diameter eyepieces, which, although they may cost more than $200, ... 18mm Super Wide by Meade; 16mm Konig by University; 16mm Xagler by Tele Vue; 13.8mm Super Wide by Meade; ... This 12-inch Dobsonian telescope comes with many user-friendly features. Quickview. Lastly, there are telescope eyepieces available that have a hybrid 1.25 and 2 inch barrel, which means they will fit into either size focuser or diagonal. Meade 16-Inch LX200-ACF (f/10) OTA Wheels Telescope Meade 406 mm F/10 Aperture: 16-Inch. Open Box Astronomik H-alpha 12nm 50mm Square Filter UT-15451. favorite this post Nov 2 RUSSIAN MILITARY SPOTTING SCOPE TELESCOPE $130 (LITTLETON ) pic hide this posting restore restore this posting. This scope is a beast and one that will remain a world-leader for a while to come. Meade SCTs of 12" and greater aperture use 3.25"-16 threads. seattle > for sale ... « » press to search craigslist ... favorite this post Oct 16 2018 Dodge Challenger R/T Plus Coupe $0 (((Titus-Will Toyota)) tacoma / pierce ) pic hide this posting restore restore this posting. For example, the later SkyWatcher 180 Pro Mak is not M42 (male) but much closer to M48. A UNC ¼"-20 thread has a nominal thread diameter of ¼" and a thread count of 20 threads per inch. MEADE Infinity 50 Refractor Telescope - Blue - Currys. Table 2 summarizes these threads. On the bottom of nearly all DSLR cameras (and many point-and-shoots), there's a female ¼"-20 socket for threading on to a photo tripod or piggyback mount for your telescope. Used worldwide. The Subaru EJ204 was a 2.0-litre horizontally-opposed (or 'boxer') four-cylinder petrol engine with double overhead camshafts. 30-apr-2018 - Meade Telescopes For Sale | Telescope Reviews Found inside – Page 81Go-to telescopes come in one of two varieties: those designed and built as all-inone robotic telescopes, ... both Celestron and Meade offer large aperture allin-one SCT telescopes up to 400 mm (16 inches) in size as well as a smattering ... The Cassini SS-1000120TR Telescope and Galileo G-SPA Smartphone adapter kit lets you use the camera feature on your smartphone to take pictures or video through the optics of your telescope or use your smartphone to assist navigating your telescope view to your celestial object of interest. 4.1.1 Eyepiece/Filter Thread - 1.25" (M28.5x0.6), 4.1.2 Eyepiece/Filter Thread 2" (M48x0.75), 4.2.3 T/T2 Thread or 42mm T-Thread (M42x0.75), 4.2.4 "Wide" T-Thread or 48mm T-Thread (M48x0.75), 4.3.4 Large 3.25"/3.28" SCT Thread (3.25"-16 and 3.28"-16), 7. Your Price: $8,249.00 + FREE Shipping; Add To Cart. Caution: "Wide" doesn't always mean 48mm. 2013 Dodge Charger - Financing Available! Some still refer to UN threads incorrectly as American threads. It comes with roller bearings and a variable tension brake. User-Friendly Features. }. Manish Panjwani has been an active amateur astronomer since before Halley's Comet last flew by our neighborhood. - MP. No Ratings Yet. Once you learn more about threads, you may find them more interesting than you thought! For example, a common project now is to try and convert a 50mm Celestron straight-through finder into a camera guidescope. $2,240 $2,795 You save 19%. Place your astronomy ads, read the latest news articles and check out the current reviews of newest telescopes and equipment. Meade 126 2x 1.25 inch (1-1/4 in.) It's articles just like this that keep me always coming back to AgenaAstro as my number one preferred Astrophotography vendor. 90mm by 1000 mm focal length.full instruction manual available to download, see final photo. Focal Ratio: f/10. Done. Inside the barrel of most 1.25" eyepieces, for example, are female M28.5x0.6 threads. £650 For Sale Nikon Telescope Spotting Scope. if(sWOTrackPage)sWOTrackPage(); It just goes to show that no brand, manufacturing country or price point is immune from such issues. Windows 10 already has a PDF printer that can do that. Baader offers a huge array of adapters for astronomy in the T/T2 format. £11.99 £ 11. Meade LX85 Refractor Telescope, 5in, Optical Tube Assembly Only, 217020. H12.5MM, EYEPIECES (JQ142) Observe the sun! Made in U.S.A. C $141.93. Also has a camera mount for rear which works at a fixed angle.. complete with positioning electronics (Autostar) and... Favourite this Advert. $69.99. The slight difference in thread diameter between the larger Meade and Celestron scopes is a source of confusion and frustration. The LightBridge Plus Series Telescopes contains an upgraded 2 inch, 2-speed Rack and Pinion Focuser. Determine the thread pitch with the use of this. To see objects through a telescope it must be pointed to exac.. £42.00. For Sale: Active: Pristine Sky-Watcher ED120 package, case, TS dual-speed linear Crayford focuser upgrade, Tele Vue Tele-Pod mount + tripod, etc. It must be the SCT thread. I have always had a hell of a time trying to understand the different names for threads and connectors and this has helped me a lot. Eyepieces, shroud and emergency hardware 12” Orion Intelliscope- $150 weekly price drop! Found inside – Page 2005Meade's telescopes proximately 250 accessory products , which accounted range in aperture from two inches to 16 inches , and in for 20 % of sales in FY 00. And microscopes and magretail price from under $ 100 to over $ 15,000 . nifying ... Anyway, rightly or wrongly it was was these expectations that I spent my first observng night with the 14 LX200 GPS kindly bequeathed to us by Alan Longstaff. The 106 uses three major thread sizes, M54x0.75 [Takahashi's wide mount (WM) / Wide-T thread], M72x1.0 and M92x1.0. CutePDF then asks you where to save the pdf file. favorite this post Oct 15 2018 Jeep Grand Cherokee 4x4 4WD Limited SUV $35,900 (Se Habla Espanol seattle ) pic hide this posting restore restore this posting. Some third-party vendors make focusers and adapters for one size or the other. Page 20 of 30 - Craigslist,eBay and other vintage/classic telescope ads - posted in Classic Telescopes: The feedback is real, but that sellers account has been hacked. The Celestron NexStar 8 SE telescope sets up and breaks down quickly and is great for taking to dark sky locations. SCT threads typically use locking thread rings and those rings aren't part of the measurement. 90. While 1.25"=31.7mm, the actual thread diameter is 28.5mm. Very useful and informative article. 5 bids. 112-40020 Manuf. This book is for the aging amateur astronomy population, including newcomers to astronomy in their retirement and hobbyists who loved peering through a telescope as a child. Losmandy style dovetail for fast and easy attachment to your choice of mount. Skip to the beginning of the images gallery. Atik CCD Cameras 16; Atik CMOS Cameras 10; Atik Imaging Accessories 17; Baader Planetarium. It will help you get oriented, and it may answer many common questions about thread configurations. Showing 1 to 15 of 16 total. (It wasn't down to collimation, which is easy to get right on an SCT.) $1,335.00. Used Unistellar eQuinox Smart Telescope UT-15469. While there are dozens of threads commonly used in astronomy, from small M3 threads used on thumbscrews to large M117 threads used for large telescope focusers, most astronomers commonly encounter about a dozen thread types. A Dobsonian telescope is an alt-azimuth mounted Newtonian telescope design popularized by the amateur astronomer John Dobson starting in the 1960s. The same problem happens with many old C90 Celestron spotting scopes that do not use the same thread pitch as the newer 1.375"-24 scopes and accessories. Both manufacturers use the same thread specification for this thread. Also found onsome drawtubes, reducers, flatteners, off-axis guiders. It is in excellent condition and has just today been serviced, cleaned and collimated by Steve Collingwood of SC Telescopes. At 3.8x per inch of aperture, this is very close to the 4x per inch of aperture generally regarded as the lowest practical power with any telescope. The first thing he told me was that it was a 3-year old model, and they had problems with the threading on those ones. Found inside – Page 82When first introduced, Meade was offering some real deals on both scopes, but just as they were going into production, prices rose precipitously. The 16-inch version is currently $40,000, and the 20-inch is $50,000. Meade optics consistently outperform telescopes of similar and larger aperture. It also comes with a padded case and a manual. See section 4.2.4. Dobson's telescopes featured a simplified mechanical design that was easy to manufacture from readily available components to create a large, portable, low-cost telescope. As a result, there is always the odd chance of some M48-threaded items not working well together. Issues with other threads are generally encountered less frequently. There are two configurations of machined threads used in astronomy: UNC and Metric. 2005 Chrysler Town and Country Limited LOADED! Eyepiece Short Focus Barlow. Such information exists in bits and pieces in catalogs and on websites, but it's hard to find a single good 'primer' that explains astronomy threads. We carry all brands and products, like Meade telescopes, Celestron telescopes, and more. Click on the image to download a high-resolution version If you're in a hurry, the next section explains how threads are specified, and it summarizes the most common types of threads used in eyepieces, filters, telescopes, cameras, and focusers. Please visit craigslist from a modern browser. I have a Meade 2080 8" SCT OTA. Refractor Telescopes . Thank you! You must enable JavaScript to use craigslist. Found inside – Page 225TELESCOPES A telescope is , simply , a light - gathering tube ; a lens , mirror or lens / mirror imaging system ; and an ... Alternative choices : Meade's 8 - inch f16 reflector with motor drive ( $ 750 ) ; the Dynamax 8 Schmidt ... Only 2 left in stock - order soon. Baader Visual Filters 12; Baader Eyepieces 1; Bob's Knobs.
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