In my mind it was well worth the time and effort to build my firs t 12.5-inch f/4 f/16 Classical Cassegrain and In this article I will review the mid-sized 8-inch Cassegrain. The second RCT was a 40-inch built in 1934 for the Naval Observatory and is currently at their Flagstaff Station. The 102 millimeter SkyWatcher S11510 (around $265) is a good choice for those looking for an affordable and portable scope. StellaLyra 6" f/12 M-CRF Classical Cassegrain Telescope OTA (4) 459.00 Add to Basket. NGC-55. November 7, 2021 Leave a comment . Cassegrain Telescopes; GoTo & Computerized Telescopes; TableTop Telescopes; Spotting Scopes; Solar Telescopes; Telescope Optical Tube Assemblies; Astrophotography Telescopes; Guide Scopes; Beginner Telescopes; Intermediate Telescopes; Advanced Telescopes; Great Telescopes Under $200; Telescopes with Free Shipping; Best Telescopes for Comets This 12-inch Schmidt Cassegrain telescope features ultra-high transmission coating that will provide you with a much clearer image of different celestial objects. 3 easy payments of $233.33 With payment plan. Some have 96% and some 99% reflectivity mirror coatings . $3,499.00 SAVE: (%) Unit price. The Schmidt-Cassegrain design also eliminates chromatic aberration making it a good choice for entry-level astroimaging. Classical Cassegrain optical design excels for high-power lunar and planetary observation and imaging Long focal length of 1836mm (f/12) "folded" into an optical tube just 20.5" long - so you won't need a giant mount! Dobsonians and reflecting telescopes in general tend to have a short focal length, while Cassegrain telescopes have a long focal length. D=154mm / F=1848mm F/12 - MADE IN TAIWAN Telescope 42600 + 18% GST 6" f/12 Classical Cassegrain Telescope by GSO Cassegrain telescopes combine the benefits of a Newtonian telescope being a pure reflective system with a short-built design. The RC is heavier than an SCT of the same size, which also made me opt for the 6 version instead of the larger 8 (13 vs. 19 lbs). These claims tend to confuse the amateur astronomer into believing you must have 1/10 wave optics, when . $3,499.00. Specialized Cassegrain telescope. Lunar eclipse. Weight, optical tube: 12.0 lbs. Focal length: 1836mm Focal ratio: f/12.0. Orion CC6 6" Classical Cassegrain Telescope. 1 offer from 499.00. SH 241 vdB 65 LDN 1557 (Auriga) 135mm f6.7 - Antonio Fernandez. This can enable you to bring right to your video cameras which can be Canon Cameras Reviews. In 1949, Cave had produced a telescope for his own use - a 121/2-inch, f/11.3 giant. Kadioptic telescopes - combination of mirrors and lenses : Maksutov Cassegrain Telescopes. 6" Schmidt-Cassegrain Optical Tube Assembly. We don't know when or if this . All models in stock! The f/10 focal ratio is classic when it comes to visual observations and planetary photography, and when it comes time to do some deep-space imaging, an optional focal reducer will effectively widen the field of view. In this article I will show how it is possible for the ATM to make his own Cassegrain telescope. StellaLyra 6" Classical . Cave made cassegrain mirrors, but I didn't think they went down to a 6-inch size. Explore the Universe and control your NexStar Evolution telescope with the free Celestron . StellaLyra 6" Ritchey-Chrtien Vixen-style Dovetail Bar & Radius Blocks (3) 69.00 Add to Basket. In terms of optical quality, Cassegrain telescopes are superior to customary Schmidt-Cassegrain systems. The optics were made by Cumberland Optical, Maryland configured by hand to 1/20th wave. Cassegrain telescopes are mainly used for photography of the moon . Best 12-Inch Schmidt Cassegrain Telescope Meade LX600-ACF 12 f/8 Go-to Schmidt-Cassegrain Telescope. Perhaps the most prominent feature of a Dobsonian is its Altazimuth . Classical Cassegrain optical design excels for high-power lunar and planetary observation and imaging.For our US and Canadian customers - http://bit.ly/2tizH. Because telescopes magnify the image, they also . Available as a bare optical tube assembly or packaged with a variety of computerized mounts, the Celestron C6 Schmidt-Cassegrain (MSRP: $459.95) fills the gap between its 5 and 8-inch brothers. Weighing less than 10 pounds, it features a multicoated optical tube for sharper images, and is compatible with any mount fitting a V-style dovetail plate. Classical Cassegrain optical design excels for high-power lunar and planetary observation and imaging Long focal length of 1836mm (f/12) "folded" into an optical tube just 20.5" long - so you won't need a giant mount! The telescope features a 6 Schmidt Cassegrain Optical Tube Assembly and an Aluminum Optical Tube. 10. Precision 2 . Celestron's premium StarBright XLT coatings. A George Ritchey's 24-inch (0.6 m) reflecting telescope, the first RCT to be built, on display at the Chabot Space and Science Center in 2004. -Use this scope for what it was designed to do which is medium to high power viewing and you will be happy. Sale price. We were impressed with how easy the Astro Fi 6 SCT was to assemble, set up and use for a variety of purposes. Precision 2 . The Schmidt-Cassegrain Telescope, or SCT, is the most popular design in the broader catadioptric telescope line-up. Better still, it's one of the most . VAT) Altair 8" F4 Photo Newtonian Telescope From: 499.00 415.83 (ex. With tube length of 21 inches, a 150mm (6) precision-polished fully multi-coated meniscus front lens, and solid uncompromising construction. In terms of optical quality, Cassegrain telescopes are superior to customary Schmidt-Cassegrain systems. 2.1 Altazimuth (Alt-Az) Mount; 2.2 Leaner Mirrors; 2.3 Tube Frames; 3 Cassegrain . I personally have not used the scope as . Aperture: 152.4mm(6-Inch). Product . Celestron C6-A SCT Optical Tube Features. The Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas, the main characteristic being that the optical path folds back onto itself, relative to the optical system's primary mirror entrance aperture.This design puts the focal point at a convenient location behind the primary mirror and the convex . Reach for a Star-Optics A division of KDEL ENTERPRISES 515 North Service Road, Ste.2403 Mississauga, Ontario, Canada L5A 1B3 ph. If the idea of a long focal length telescope for high-power visual pursuits or for lunar or planetary photography sounds like fun, get your hands on the Orion CC6 6" Classical Cassegrain Telescope today. A friend of Cave's, O. R. Norton, was invited over to see it and is . 12 offers from 78.67. Ultra-High Transmission Coating. The Celestron 6-inch SCT Advanced . STAR INSTRUMENTS continues to be concerned with the false advertising claims being made by amateur optical suppliers who claim 1/10 to 1/20 wave optics. Our 6" f/12 Classical Cassegrain excels for high-resolution lunar and planetary viewing and imaging, and will get you in close on tight objects such as globular clusters and planetary nebulas. New 6 inch 1800 X 150mm Maksutov-Cassegrain Telescope Overviews. Astro-Physics 130 GTX - 130mm aperture, 780mm focal length f/6.3 triplet apochromatic refractor - $7,000. That means the CC6 is easily supported on a modest-size mount such as the Orion Sirius EQ-G. The Maksutov design combines a spherical mirror with a longer native focal length (slower f/3 relative aperture) than a typical Schmidt Cassegrain (f/2) with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly . The trouble with . This design allows the telescope tube to be much more compact than a Newtonian reflector or a refractor. SALE! The New LT-6 is a fully featured computer-controlled 6" telescope that sets a new high-performance standard. Total Solar Eclipse. The Celestron C6-A optical tube comes with a Celestron star diagonal and a 6x30 finderscope. The AT6RC is the baby of the bunch, and with an entry price of only $399, putting it right next to similar sized Schmidt-Cassegrain telescopes from Celestron and Meade. The 6" stationary primary mirror - made from thermally stable quartz -- won't exhibit image shift or mirror flop like in a typical Schmidt-Cassegrain or Maksutov. Available as a bare optical tube assembly or packaged with a variety of computerized mounts, the Celestron C6 Schmidt-Cassegrain (MSRP: $459.95) fills the gap between its 5 and 8-inch brothers. 310-328-9560. Optically, the telescope is excellent. Included With The Celestron C6-A Optical Tube is a CG5 compatible dovetail bar for easy mounting. The best telescope for a beginner in astrophotography is a small refractor. Classical Cassegrain optical design excels for high-power lunar and planetary observation and imaging Long focal length of 1836mm (f/12) "folded" into an optical tube just 20.5" long - so you won't need a giant mount! 00. Meade LS 6-Inch SC (f/10) Schmidt-Cassegrain Telescope DealsDigital Camera Getting Suggestions - Making Sensible Buys On-lineFirstly , have to be completed is usually to make a decision this you are happy to dedicate to the digital camera along with follow it. About the Mount The new Advanced VX mount was specifically designed to provide optimum imaging performance for . With a tube weight of just 2.17kg, mount weight of 2.3kg and tripod at 2.3kg, each is just over a couple of bags of granulated sugar in weight. Contents. -Classical Cassegrain have a slight tad of astigmatism and coma very far from axis, so it's usually designed with a very slow f/ratio to mitigate that like f/18 to f/30. Cave favored large instruments, and to some extent is responsible for making amateur astronomers realize that they could move beyond the usual 6-inch reflector that was common at the time. Orion's 6" f/12 Classical Cassegrain excels for high-resolution lunar and planetary viewing and imaging. Precision 2 . Currently unavailable. STAR INSTRUMENTS guarantees a minimum of 1/4 wave front, 1/20 wave r.m.s. Mostly featured is my 12.5 inch f/20, however some photos are from a similar 10 inch telescope (this article . However, Ritchey-Chrtien telescopes can now be bought for reasonable sums made by a Taiwanese Company, Guan Sheng Optical (GSO). Telescope History. VAT) Altair 6" F5 Newtonian Telescope From: 249.00 207.50 (ex. Among the catadioptrics, the Maksutov Cassegrain has justifiably earned a solid reputation as an excellent high resolution telescope. The Classical Cassegrain is known for its outstanding views at the eyepiece, giving APO refractor like views without the expense associated with a large triplet refractor. Yann-Eric Boyeau - 105mm F/6. Aluminum Optical Tube. Optics 150mm (6-inch) SCT compound telescope with StarBright XLT coatings Focal length 1,500mm, f/10 Mount Wi-Fi computerised altazimuth single fork arm Ports Power connector, two aux ports, integrated Wi-Fi adaptor, on/off switch Tracking rates Sidereal, lunar and solar Tripod Adjustable with accessory tray, including smartphone holder Focal Length: 1524mm. Home Nikon 28-300mm f/3.5-5.6G ED VR . Compact, portable 6-inch Schmidt-Cassegrain optical tube with StarBright XLT optical coatings Computerized GoTo mount with high-performance worm gears and motors for improved tracking accuracy, along with reduced gear backlash Rechargeable lithium-iron battery . Sold as optical tube assembly only, the Orion CC6 6" Classical Cassegrain Telescope comes with TWO dovetail finder scope bases, giving you the freedom to mount an optional Orion finder scope on either side of the focuser, or to mount a small guide scope and finder scope simultaneously. Regular price. May 2022 updates - CFF Telescopes Please read our summary containing valuable information - thank you! 4.3 out of 5 stars 11,426. Aberrations in Ritchey-Chrtiens In a classical Cassegrain telescope (another all-reflective design like the RC), the . And I don't believe A. Jaegers manufactured cassegrain mirrors. The Schmidt-Cassegrain has a folded optical system consisting of a primary mirror and a corrector plate with the secondary mirror right in the center. It has StarBright XLT coatings, which are the premium choice in this industry. Its legendary Meade optics either classic Schmidt- Cassegrain or our premium Advanced Coma-Free systems along with precision worm gear drives, sturdy die-cast aluminum mount and . Catalin Beldea - 160mm F/6.5. the 150mm Maksutov-Cassegrain is a paragon of portability, optical excellence, and durability. The 6" stationary primary mirror - made from thermally stable quartz -- won't exhibit image shift or mirror flop like in a typical Schmidt-Cassegrain or Maksutov. Altair 6" F12 M-LRS Classical Cassegrain Telescope OTA 450.00 375.00 (ex. SkyWatcher S11510. Cassegrain telescopes have become some of the most popular instruments for amateur astronomers and professional observatories alike, due to their ability to be compact and easy to use. It will provide you with the most beautiful . Wouter D'Hoye - 300mm Cassegrain. The image with both telescopes was crisp, well saturated with color and able to reveal delicate festoons in the now-yellowish Equatorial Zone. VAT) Altair 6" F4 Photo Newtonian Telescope From: 389.00 324.17 (ex. Maksutovs - Telescopes for Observation & Planetary Photography : GoTo Telescopes. In terms of optical quality, Cassegrain telescopes are superior to customary Schmidt-Cassegrain systems. Incredible value 6" f/12 StellaLyra Classical Cassegrain Perfect for high magnification lunar and planetary observing and imaging The long focal length classical cassegrain design is perfect for both visual observing and astrophotography on smaller targets such as planets, close-up Lunar, double stars, small nebulae and comets. VAT) Altair 8" F12 M-LRS Classical Cassegrain Telescope OTA 940.00 783.33 (ex. There are not ma ny amateur telescope makers (ATM) today who build Cassegrain telescopes. REVIEW. VAT) Altair 8" F5 . StellaLyra 8" f/12 M-LRS Classical Cassegrain Telescope OTA (3) 879.00 Add to Basket. The most common large sizes are about 20-25". But while most people are familiar with the name Schmidt, owing to the Schmidt camera, invented by Bernhard Schmidt, the origins of the Cassegrain part of the name eludes many . This is a 6-inch aperture, 90-inch focal length, Maksutov-Cassegrain with moving primary focusing. 1 offer from 449.99. 6x30 finderscope to help accurately find objects. Compare { width: 160, height: 160, defaultImage . We use cookies and similar tools that are necessary to enable you to make purchases, to enhance your shopping experiences and to provide our services, as detailed in our Cookie Notice.We also use these cookies to understand how customers use our services (for example, by measuring site visits) so we can make improvements.