The Maksutov, like a Schmidt-Cassegrain is between Newtonian reflectors and high end refractors in the aperture/cost ratio. Cassegrain - Telescope Nights Please Do Not Buy Any Telescope Until You Read This ... Schmidt-Cassegrain vs Maksutov-Cassegrain. On the other hand, the Schmidt-Cassegrain telescope uses a spherical primary mirror and a Schmidt corrector plate to correct for spherical aberrations. Edit : for example is a 8" Schmidt-Cassegrain better than a 4" Maksutov-Cassegrain? Cassegrain telescopes are good all-purpose telescopes, which are commonly used for deep-sky viewing and astrophotography. On the surface, they both look pretty similar. Within the amateur astronomy community, there are a lot of Schmidt-Cassegrain (SCT) and Maksutov-Cassegrain (MCT) telescopes, both of which are referred to as "catadioptric" designs. This is the cheapest of the 5 telescopes that we reviewed. Comparison Table Header Explained. In addition, both lenses are less vulnerable to vignetting than Schmidt-Cassegrain's due to the smaller diameter of a spherical piece of glass. [6] Louth, Howard, "A Large Maksutov with Newtonian and Cassegrain Foci", Sky and Telescope, February 1977, 139-143. The CGEM II, with its 40 lbs load capacity, is the latest update to the venerable CGEM mount and provides a sturdy and rigid platform . The very long focal length means that a mount like the HEQ5 Pro is the minimum for enjoying these scopes, both visually and imaging with a steady enough tripod. Maksutov-Cassegrain vs Schmidt-Cassegrain Telescopes. The telescope features a 6″ Schmidt Cassegrain Optical Tube Assembly and an Aluminum Optical Tube. Celestron Advanced VX 9.25 Schmidt-Cassegrain system (£2,178) The C9.25's 9.25-inch (235mm) aperture is generous, gathering a third more light than an 8-inch (200mm) reflector. Maksutov-Cassegrain telescopes are similar to Schmidt-Cassegrain telescopes in that they use both mirrors and a lens to focus light onto a smaller area. Skywatcher Skymax 180 Pro, 2700mm focal length, f/15. Out of stock. . Other similar types are the Schmidt-Cassegrain and Ritchey-Chrétien telescope. Celestron's VX 700 Maksutov-Cassegrain is an f/15 instrument with a focal length of 2,700mm. Well, the main difference is the corrector plate or the lack of it. Here's how to tell if a Mak is right for you. This clever scheme has the advantage of keeping most of the focusing mechanism inside the telescope itself, out of harm's way. They use a single external focusing knob attached to an internal mechanism that moves the primary mirror itself, at the back of the tube, to focus the image. The main difference between the Schmidt Cassegrain and the Maksutov Cassegrain is the corrector lens at the front of the tube and secondary […] The light travels through the optical tube then it is reflected by the primary mirror to the secondary mirror that is flat to the primary mirror. This is because the Mak's optical design contains a "secondary spot" of reflective coating applied directly to the inside of the corrector plate in lieu of a secondary mirror. The Schmidt-Cassegrain system consists of a zero power corrector plate, a spherical primary mirror and a secondary mirror. The Seigler-Maksutov has a special advantage with a well corrected field of 2 degrees and can be made in apertures larger than possible with the Magee-Cassegrain. Cassegrain (or Maksutov, for short) ranks fourth in popularity. But Maks aren't for everyone. Disadvantages: 1. The Schmidt-Cassegrain is a type of catadioptric telescope with a folded light path that uses both mirrors and a lens to focus the light onto the focal plane. BK MAK90 EQ1. BK MAK127 EQ3. Refractor Newtonian Reflector Maksutov-Cassegrain Schmidt-Cassegrain EdgeHD Rowe-Ackermann Schmidt Astrograph A Refractor is a long, thin telescope. 700 Maksutov-Cassegrain telescope with f/15 focal ratio provides high contrast views of the planets and lunar landscapes, perfect for serious planetary imagers and visual observers. The schmidt-cassegrain is probably a slightly more versatile scope because of it's faster focal ratio. This combination f/6.3 focal reducer/corrector lens reduces the focal ratio of all Celestron 5" through 14" Schmidt-Cassegrain telescopes, as well as all Meade 8" through 16" SCTs . It threads onto the rear cell of 5" to 16" Celestron . More expensive than a Newtonian of comparable aperture 2. 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. Small Maksutov-Cassegrain telescopes are a godsend for urban observers who need a compact scope with good optics. PRODUCTS. Both designs feature spherical mirrors but . Small Maksutov-Cassegrain telescopes are a godsend for urban observers who need a compact scope with good optics. Maksutov-Cassegrains are another type of compound telescope, similar […] The major difference is that the Schmidt is used to take wide-field images of the sky, at fairly low magnication, while the Maksutov generally has a narrow field and a much higher magnication, much like a refractor. Russian astronomer Dmitri . Something like the reflector but the light path is different. Fully multicoated f/12 Rumak Maksutov optics and interior baffles deliver high contrast views similar to a 5-inch apochromatic refractor, at a fraction of the cost! The Maksutov-Cassegrain design also produces a longer natural focal length compared to a similar-sized SCT. The Maksutov-Cassegrain design also produces a longer natural focal length compared to a similar-sized SCT. Mais dans les faits, ils sont relativement simples et courants chez les amateurs passionnés. Celestron C9.25 XLT (20 lbs), 2350mm focal length, f/10. Here's how to tell if a Mak is right for you. Celestron's VX 700 Maksutov-Cassegrain is an f/15 instrument with a focal length of 2,700mm. Schmidt-Cassegrain telescopes, however, are a little different. The SC thread allows a wide range of accessories to be connected 6. Meade LX90 12" SCT, GSO (Orion-branded) 200mm F/4 Rich-Field Newt, Meade AR5 127mm Achromatic Refractor, SkyWatcher 150mm F/12 Maksutov-Cassegrain, Orion-branded ST80, SkyWatcher ST80 - being modified and will be a gift to an interested party, 15 X 70mm Celestron Binoculars, Old Vivitar 8 - 20 X 50mm zoom Binoculars - actually very good ones from waaaay back. GSO Classical Cassegrain 8", 2400mm focal length, f/12. Sadly, astrophotography is not easy and doing it with a scope with a long focal length like a Cassegrain is going to make it harder. How Does a Dobsonian Telescope Work? The two most popular form of catedioptric Cassegrans are the Maksutov (referred to as a Mak) and the Schmidt-Cassegrain (referred to as a SCT). Add to Wish List. 66F02752-8092-4859-B96B-3EE9425CA98F If you are exclusively into planetary observations and planetary imaging, you could skip the Schmidt Cassegrain Telescopes altogether and consider a Maksutov telescope instead. How Is A Schmidt-Cassegrain Telescope Different From A Maksutov-Cassegrain? These telescopes are perfect for visual or imaging use. Maksutov telescopes: SkyWatcher MAK180 vs. Celestron 700. $471. 150mm f/12 Rumak Maksutov-Cassegrain Telescope An excellent choice for observing or imaging the Moon and planets. In the Maksutov is a small aluminized spot. Thank you covid). 10.2.4.8. The C8 packs two meters of focal length into an OTA less than two feet long. This makes it ideal for getting close views of the planets and the Moon, but it's not so great for large deep-sky objects. For example, Schmidt-Cassegrain telescopes have a convex corrector lens and a normal secondary mirror, while Maksutov-Cassegrain telescopes, another popular Cassegrain telescope, have spherical corrector lenses, and use an aluminized spot on the corrector lens itself in place of a secondary mirror. Small Newtonian reflectors often have spherical figured mirrors. Certains disent que les Schmidt sont mieux, d'autres disent que ce sont les Maksutov, une rivalité . The minute details however were enough to make the 127 SLT the better MAK: Maksutov-Cassegrain. This in itself leads to one major advantage: Maksutovs do not require periodic collimation of the optics as do Schmidt-Cassegrains and Newtonians. Very practical handling 3. . Both the Maksutov Cassegrain and Schmidt-Cassegrain telescopes utilise a compact design, making them extra portable for their larger aperture. Objective lens: 127mm Focal length: 1500mm Requires collimation: No Weight (OTA+rings/dovetail): 3.6kg Price: With goto mount at around £400 / $440 or Skywatcher OTA-only for £240 / Orion OTA-only $400. Portable 4. Deux types de télescope qui de part leur nom semblent bien compliqués à comprendre et à appréhender. One of the most common issues that you will find with refracting telescopes is that sometimes you'll have to deal with chromatic abberation (referred to as CA, a common problem in photography). The design can be compact or non-compact. The Sky-Watcher 180 mm Maksutov-Cassegrain uses a large 7.1" lens system to do the job of gathering light so you can see faint objects . This applies to Newtonian Telescopes. The mirror's shape is incredibly accurate and MUST be parabolic to bring all the rays of light to the same focus. Consider it the sibling to the SCT since it's within the catadioptric family. We have to types- Schmidt(SCT) and Maksutov(MAK). Maksutov-Cassegrain telescopes are all about sharp, contrasty images, and the flexibility to use them as a telescope for astronomy, a spotting scope for terrestrial use, a lens for photography…or all three! The world's most beloved telescope! This is a feature of all Cassegrain derivatives and is the reason why the telescope has double name to it. Cassegrain telescopes (or catadioptric telescopes) offer versatility and high magnifying power. Light passes through the refractor in a straight line from the front objective lens directly to the eyepiece at the opposite end of the tube. Some of the nuanced bonuses like access to Starry night software, and other great bonus features gives it an upper hand over the Skywatcher 127. Explore Scientific Firstllight 100mm Maksutov-Cassegrain - FL-MC1001400TN. Weighing only 4.62 lbs, this maksutov telescope is very portable and we took it along on the weekend away from the city lights for stargazing. Dobsonian vs Cassegrain Telescopes. I bought a SkyWatcher ED80 (a reflector) and I love it. . This is a feature of all Cassegrain derivatives and is the reason why the telescope has double name to it. Another difference relates to the aperture size. The only difference is that the primary mirror on an SNT or MNT is adjusted at this stage rather than the secondary, as on an SCT. Schmidt Cassegrain, Maksutov Cassegrain, Catadioptric, Compound Telescopes looked at for advantages and disadvantages over refractor and reflector scopes Choosing a telescope to buy is always a daunting task, especially with all the different varieties and technical terms that you must first understand. Sky-Watcher Virtuoso 3.5" Telescope - S11750. This is where the corrector lens comes in, getting rid of this disturbance so the observer can have the best image quality while stargazing. As the name suggests, the Schmidt-Cassegrain telescope combines a Cassegrain reflector mirror with a Schmidt corrector. Two more common ones are the Schmidt-Cassegrain and the Maksutov-Cassegrain, often written as SCT and MAK, respectively. Schmidt-Cassegrains are made to have large apertures, and Maksutov Cassegrains usually have small apertures. -About the classic Maksutov-Cassegrain design, where the corrector glass also serves as the secondary mirror. It does not apply to Refractors, Maksutov-Cassegrain, or Schmidt-Cassegrain telescopes. 1. Brand - Telescope Brand Model - Telescope Model My Review - My take on the telescope Optical Design - The telescopes Optical Design Aperture - Telescope Aperture Focal Length - Telescope Focal Length Focal Ratio - Telescope Focal Ratio Go-To - If its a Go-To Mount "Yes" blank if not Database - of items in database. $1,559.00. LX85 Series Telescope - 6" Maksutov-Cassegrain. The Laser Collimator doesn't reflect off the primary, so it won't work to collimate the primary for a Schmidt-Cass or Mak-Cass. Carrying around and mounting an 8-inch f/10 Newtonian is something of a nightmare, but an 8-inch f/10 SCT is practically a grab 'n go . Schmidt-Cassegrain, ACF and Edge HD: Advantages: 1. They are also ideal if working space is limited. The SCT is Portable. Posted on by Michael Burnam. If portability is important to you, you might want to consider a "catadioptric" scope such as a Schmidt-Cassegrain or Maksutov-Cassegrain. Maksutov-Cassegrains replace the flat corrector plate of the Schmidt-Cassegrain with a convex meniscus lens. [5] Louth, Howard, "Notes on Constructing a 5-1/2 Inch Cassegrainian-Maksutov", Sky and Telescope, July 1966, 40-43. Orion Telescopes carries both Schmidt-Cassegrain telescopes and Maksutov-Cassegrain telescopes in a variety of sizes, all of which provide excellent image . It has a Maksutov-Cassegrain optical design with a 90mm aperture and a focal length of 1250mm. MISCELLANEOUS OPTICS . Maksutov-Cassegrain Optics. Explore Scientific. With a slow focal ratio of f/13.9, it's well suited to lunar and planetary observation. 10.2.4.7. No. The classic, 8-inch Schmidt-Cassegrain revolutionized amateur astronomy in the 1970s. Most telescope users are familiar with the Schmidt-Cassegrain design, a short-tube catadioptric that is that is quite popular among astronomy and astrophotography buffs. So, for comfort get a Cassegrain (perhaps an 8" or 9.25" might be best) and for astrophotography get a good solid mount. Best Schmidt Cassegrain Telescope of 2020: Top Five Picks You need the right equipment that will help make it much easier to observe the night sky for celestial objects. But Maks aren't for everyone. Maksutov Cassegrain is a catadioptric design with a spherical primary mirror with a hole in the middle and convex secondary mirror. Schmidt-Cassegrain telescope is also a cata-dioptric system. This focal reducer and field flattener consists of a four-element multicoated 40mm lens in a metal cell. In the conclusion, a comparison with near-optimized catadioptric two-mirror systems with spherical mirrors and an ƒ /3 primary is made: the SCT, MCT, and three HCT varieties . The primary difference between the two . This makes it ideal for getting close views of the planets and the Moon, but it's not so great for large deep-sky objects. Add to Wish List Add to Compare. If you are looking for a Cassegrain telescope you might be wondering what is the difference between the Schmidt-Cassegrain and Maksutov-Cassegrain telescope. Large, 8-inch aperture with excellent light . Maksutov Cassegrains; Ultimate take-anywhere telescopes! If so, you have come to the right place. The system is also optimal for occasional terrestrial observing, e.g. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . And "Maks" are back in style, so there's a good selection on the market. Can the Laser Collimator be used on Schmidt-Cassegrains and Maksutov Cassegrains? An 8" Schmidt-Cassegrain provides excellent views of the Moon, planets, and deep-sky objects, and is well suited for astrophotography. For beginners and young astronomers looking for a telescope that's easy to use, we recommend the Astro Fi 102 Maksutov-Cassegrain and Astro Fi 90 refractor scopes from Celestron. Maksutov-Cassegrain, Schmidt-Cassegrain. Houghton-Cassegrain comparison. Schmidt has thin complex shaped corrector lens with a secondary mirror, and Maksutov has thick spherical corrector lens and the secondary mirror that is not a mirror but an aluminized small spot on the inside of the Maksutov corrector lens. However, the 127 by Skywatcher is still every capable Maksutov-Cassegrain telescope. Maksutov is the part for the corrector used -- the Maksutov Meniscus, and Cassegrain part denotes that mirrors are arranged in a Cassegrain fashion. I know that the more the aperture the better in some cases but for DSOs I appear to need a smaller scope (like a Redcat 51 but I didn't recieve it yet sadly. And "Maks" are back in style, so there's a good selection on the market. Difference between Maksutov-Cassegrains and Schmidt-Cassegrain Their main difference is the corrector lens at the front of the telescope. Using the bottom end of the OTA to look through means easy orientation. The SCT is more prevalent, being one of the most popular telescopes. BK MAK102 EQ2. Schmidt Cassegrain vs Maksutov. Other similar types are the Schmidt-Cassegrain and Ritchey-Chrétien telescope. Maksutov telescopes certainly have a couple of advantages when compared to Schmidt Cassegrain telescopes. Both of them use spherical mirrors that induce spherical aberrations. Instruments with a fork mount can be set up extremely rapidly . Another difference is in the size of the aperture. BK MAK127 OTAW. And for that, you need a Schmidt-Cassegrain telescope to provide you with mobility as well as great quality images. Its f/10 optics put it in the slow category and it is best suited for Solar System objects. Which one's better for the DSOs? BK MAK 102 AZ-GO2. . If the diffraction ring bulls-eye is skewed, fix it as described in the SCT fine collimation section. Short length 2. The Schmidt-Cassegrain design provides a good all-round system suitable for both observing and astrophotography and with an enormous range of optional accessories available. Even so, like most Schmidt Cassegrain scopes, it still does come at quite a hefty price. The multi-coated optics gave us amazing clear views of planets: star clusters, deep-sky objects, and the moon. Celestron 6" Schmidt Cassegrain Optical Tube. Since they typically have long focal ratios, in the range of f/10 to f/15, the coma is less than in a similar-sized Newtonian. The most popular optical designs of these telescopes are Schmidt-Cassegrains (SCT) and Maksutov-Cassegrains (MCT). Add to Cart. In the case of a . Now, the iconic "orange tube" design is updated with all the latest features to provide the best stargazing experience for beginners and experienced observers alike. The final act in the Schmidt/Maksutov Newtonian collimation drama is a star check. Maksutov is the part for the corrector used -- the Maksutov Meniscus, and Cassegrain part denotes that mirrors are arranged in a Cassegrain fashion. Frequently asked . Continuing on from my previous videos testing out the StarQuest 102MC Maksutov telescope and it's larger brother the Skymax 127, in this video they go head-t. Schmidt-Cassegrain and Maksutov-Cassegrain Most commercial Schmidt-Cassegrain and Maksutov-Cassegrain designs also suffer from coma. Houghton-Cassegrain vs. Schmidt- and Maksutov-Cassegrain. birdwatching at close range . $380. The Schmidt Cassegrain telescope combines the best of the refractor and reflector telescopes by using both lenses and mirrors in a compound system. Schmidt-Cassegrains vs. Maksutov-Cassegrains Although they share many of the same design features, there are a few important differences. The StarMax 90 is not a Schmidt-Cassegrain (SCT) telescope but a Maksutov-Cassegrain. The Schmidt Cassegrain is just naturally easy to transport and set up given its folded optics and short tube. Many of these Cassegrain variations are cadioptic, that is, they use a combination of both refractor and reflector optics to collect the light and bring it to the focal plane. Typically these mirrors will be adjusted by means of three screws. Answer (1 of 6): Reflector telescopes typically have two mirrors that require precise alignment for best image quality. Maksutov-Cassegrains are another type of compound telescope, similar […] It is a catadioptric telescope that combines a cassegrain reflector's optical path with a Schmidt corrector plate to make a compact astronomical instrument that uses simple spherical surfaces. Three of the most popular designs for compound ( having lenses and mirrors) telescopes are the Schmidt Cassegrain or SCT, the Maksutov Cassegrain, Rumak and Gregory versions and the Maksutov Newtonian. In the case of a Schmidt Cassegrain telescope, the two mirrors are independently adjusted. Maksutov's deliver better planetary detail than other telescopes due to a focal length that's 5-7 times longer, increasing overall . BK MAK127SP-1.25" BK MAK127 AZ-GO2. Maksutov-Cassegrain telescopes do not need to be constantly collimated like Schmidt-Cassegrain telescopes do. I occasionally use it for observing. They pack a hefty aperture into a very compact tube. Schmidt Cassegrain, Maksutov Cassegrain, Catadioptric, Compound Telescopes looked at for advantages and disadvantages over refractor and reflector scopes Choosing a telescope to buy is always a daunting task, especially with all the different varieties and technical terms that you must first understand. On the contrary, the Maksutov comes with a secondary mirror and a thick, spherical corrector lens. Are you trying to figure out the differences between Maksutov-Cassegrain vs Schmidt-Cassegrain telescopes? In this guide, we will talk about the different systems that each of these telescopes are based around and how they . The collimating eyepiece is a preferred tool for Schmidt-Cassegrain collimation. The SkyMax has a Mak-Cass or MAK (Maksutov-Cassegrain) optical design. The Cassegrain design is very popular amongst amateur astronomers, and almost every amateur astronomer will own, at some point in life, the Cassegrain design telescope. Schmidt-Cassagrain and Maksutov-Cassegrain have the same basic design, using a curved mirror and a corrector plate to focus the image. A maksutov-cassegrain will show many deep sky objects quite well albeit with a narrower field of view and a schmidt-cassegrain will show nice views of the moon and planets but perhaps with slightly less contrast than a mak-cassegrain has. in short, a maksutov-cassegrain telescope is generally better for planet viewing due to the narrow and generally large focal ratios, however this also does compromise the astrophotography performance of mak telescopes, which is an area schmidt-cassegrain telescopes don't suffer nearly as much from whilst still having plenty of ability when … The Schmidt consists of a thin, complex-shaped corrector lens, along with a secondary mirror. A frequent problem with Refracting telescopes is that they can sometimes cause what is known as Chromatic Abberation (CA). The secondary mirror is actually a silvered spot on the inside of the meniscus lens. Despite their small dimensions they pack a powerful punch. One major difference between these two telescopes are that the Maksutov-Cassegrain telescopes have wider fields than Schmidt-Cassegrain's, giving them sharper images as well as better contrast. Viewing is always comfortable 5. Compound Telescope Designs, Some Pros and Cons. These are known as the Maksutov (sometimes called a Mak) and the Schmidt-Cassegrain (sometimes called a SCT). Houghton-Cassegrain: designing 11. Corrector plates and mirrors A Schmidt-Cassegrain has a thin corrector plate that is flat on one side and "wavy" on the other. Schmidt Cassegrain telescopes consist of big apertures. Skymax Maksutov-Cassegrain telescopes serve as an alternative to Schmidt Cassegrains and Newtonians, and offer astronomers a large visual aperture, high contrast and long focal length in a compact package. The Maksutov Cassegrain produces sharp, high-contrast images with its diffraction-limited optical design. The Mak-Cass has a primary mirror with a hole in it where the light cone is able to come to a focus point beyond the primary mirror - hence the long 1540 mm focal length and short 15" tube length. The amount of coma is not normally problematic when observing, but can appear at the . Celestron's premium StarBright XLT coatings ensure maximum light transmission. They employ both mirrors and lenses that fold the light path, allowing a compact tube length. First published telescope arrangements in the U.S. that followed the 1941 introduction of full-aperture meniscus corrector for spherical mirror was a pair of two-mirror Cassegrain systems - f/15 and f/23 - and Maksutov-type corrector by John Gregory in 1957.In it, the secondary was an aluminized spot at the back surface of the corrector. 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Comparable aperture 2 fourth in popularity the moon suited to lunar and planetary observation > Schmidt or,... One major advantage: Maksutovs do not require periodic collimation of the meniscus lens < >... Packs two meters of focal length into an OTA less than two feet long within the family! Are known as the Maksutov Cassegrain telescopes is that they can sometimes cause what is the difference the! Also optimal for occasional terrestrial observing, e.g space is limited, still. Cassegrain Optical Tube plate, a spherical primary mirror and a thick, spherical corrector lens a hefty into... Une rivalité Maksutov-Cassegrain, or Schmidt-Cassegrain - Getting Started Equipment... < >! The meniscus lens gave us amazing clear views of planets: star clusters, deep-sky objects, and the.! 6 & quot ; Maksutov-Cassegrain //www.telescope-optics.net/maksutov_cassegrain_telescope.htm '' > Schmidt or Maksutov, rivalité. 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They pack a powerful punch Free Shipping < /a > Schmidt Cassegrain Optical Tube compact,. Objects, and the moon Newtonian of comparable aperture 2 Best telescopes PHOTOGRAPH. 2020 Reviews < /a > the collimating eyepiece is a preferred tool Schmidt-Cassegrain., allowing a compact design, making them extra portable for their larger aperture compact... Celestron Schmidt-Cassegrain telescope combines a Cassegrain reflector mirror with a slow focal ratio, you have come to right. Different systems that each of these telescopes are perfect for visual or imaging use they pack a hefty aperture a.
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