The second type of telescope, the reflector, uses a mirror to gather and focus light. Choosing a telescope by andrew johnston there are three types of telescopes for the amateur astronomer, refractor, reflector and catadioptric. All you need to do is download celestrons free skyportal app from the apple. The maksutovcassegrain is a variation of the maksutov telescope named after the. I understand they are very different pieces of equipment with different.
The negative lens is usually full diameter and placed at the. I agree with most of what is said in three previous answers. A maksutovcassegrain, also referred to as a makcass or more simply, a mak telescope, is a member of the catadioptric telescope family and uses both mirrors and lenses in its folded optical design. Best telescopes for beginners easy to use 2020 guide space. Maksutovcassegrain telescopes are an alternative design to the similar schmidt cassegrain telescope sct. Skywatcher maksutovcassegrain 150mm telescope s11530 skywatchers larger skymax maksutovcassegrain telescopes, like this 150mm model, provide the same impressive visuals youd get from a refractor, but without the size, weight, and. Maksutovcassegrain telescopes are very popular, especially in smaller apertures, due to their super portability and beautiful highcontrast views. The main advantage here, compared to other similar models is that maksutovcassegrains dont need periodic collimation as many other telescopic models do. Save on select skywatcher telescopes, through dec 31st, 2017. Maksutov cassegrain optical design the mak is a catadioptric telescope, which means the optical design includes both a lens and a mirror. As you can see, maksutovcassegrain folds the light path inside the tube. Maksutovnewtonian telescope reflectors cloudy nights. The telescope aries 10 mc thereafter is a 10inch maksutovcassegrain with f15 focal ratio and 30 field of view that is comafree and diffractionlimited across the spectrum, from infrared through ultraviolet spectrum.
The schmidt telescope had a primary mirror at the back of the telescope, and a glass corrector plate in the front of the telescope to remove spherical aberration. We want to ensure that making a return is as easy and hasslefree as possible. The maksutov cassegrain brings sharp, highcontrast images with its diffractionlimited optical design, perfect for visual or imaging. Allinone screen mirroring tech for ios, chrome os, macos, android and windows. Telescope manuals software firmware sports optics manuals coronado manuals weather station. But bigger telescopes also require bulkier, heavier mounts and tripods to keep them stable, and consequently, an equally brawny owner to lug it around not to mention more. The secondary mirror is movable, so focal length modification in order to get focus is possible.
Maksutovcassegrain telescopes are an alternative design to the similar schmidtcassegrain telescope sct. Orion apex 127mm maksutov cassegrain telescope orion apex 127mm maksutovcassegrain telescope ota. Apm professional telescopes ceo markus ludes equipped his personal observatory with a fantastic telescope. The first compound telescope was made by german astronomer bernhard schmidt in 1930. Here is the optical scheme for a classic newtonian reflector.
An interesting aspect of the commercial maksutovcassegrain is the question of its star test. This item skywatcher s11500 maksutovcassegrain 90mm black orion 9823 apex 102mm maksutovcassegrain telescope. Compact f12 maksutovcassegrain telescope with 150mm 5. Skywatcher maksutovcassegrain 150mm telescope s11530. Observe in no time with a quick and easy, notool setup. I have decided to go with a reflector telescope for how much light it lets in. A schmidtcassegrain can be made optically perfect at one color, whereas the maksutovcassegrain is an approximation designed for straightforward fabrication. If you want to know how come maksutovcassegrain or any cassegrain deritvative, for that matter fit that much of focal length into short tube, then i can answer that. While it is true that the somewhat smaller central obstr.
How to choose a telescope for astronomy types of telescopes. Compound or catadioptric telescopes are hybrid telescopes that have a mix of refractor and reflector elements in their design. For the most demanding enthusiast, our new orion skyview pro 180mm goto makcass telescope sets the standard for highpower performance and compact design. To start right, download our free astrophotography primer. Maksutovcassegrain optical design the mak is a catadioptric telescope, which means the optical design includes both a lens and a mirror. Skysafari 6 plus ios skysafari 6 plus android lxps 18 portable power supply manual. Whether youre observing or taking a crack at long exsposure astrophotography your equipment will benefit greatly from a. Greetings, i am considering buying an explore scientific 152 maksutovnewtonian telescope. Look for the most helpful accessories to work with your telescopes or mounts.
Even so, when well made, a schmidtcassegrain or maksutov will deliver very fine images of a. Looking for something to satisfy your appetite for power. There is a notion that its optics has special properties, making it sort of exception in that its intra and extra focal pattern are not supposed to be identical, even when it is near perfectly corrected. Its a nice telescope, wellbuilt, with 16th wave optics.
Maksutovcassegrain optical tube assemblies makcass ota. Maksutovcassegrain axial aberrations telescope optics. As a result, maksutovcassegrain can be made free from coma and astigmatism in a. Control your telescope via integrated wifi using the free celestron skyportal app for iphone, ipad, and android devices. An unfocused view of a bright star through the eyepiece should appear as illustrated on right if optics. The light coming through a mak passes through the corrector lens to the primary mirror and back to a spherical secondary mirror before it hits the eyepiece. Like schmidtcassegrain telescopes, maksutovcassegrain telescopes are suitable for some applications, from terrestrial observing to astrophotography and stargazing. Apmmatthias wirth maksutov cassegrain 400 mm dimensions. I know little about the maksutov part of this scope. Maksutovcassegrain telescopes reflector telescopes for sale.
Celestron advanced vx 7 maksutov cassegrain telescope. But as a practical matter, either type can be made poorly or well, and quality of construction, aperture, and focal length issues will trump such purely theoretical considerations. The secret is in the lightfolding maksutovcassegrain design. Celestrons premium starbright xlt coatings ensure maximum light transmission. I feel ive been over hundreds of topics on hundreds of forums in trying to decide on a 150mm reflector vs 150mm mak. It permits largediameter optics, 102mm, to be housed in an unusually compact, wonderfully portable tube.
Maksutov telescope cassegrain reflector reflecting telescope. The light coming through a mak passes through the corrector lens to the primary mirror and back to a spherical secondary mirror before it hits your eyepiece. 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 systems primary mirror entrance aperture. Maksutovcassegrain telescopes are a catadioptric design, meaning they use both lenses and mirrors. Compound or catadioptric telescopes how telescopes work. Reflector most reflectors are an open tube design with the primary mirror at the bottom end of the tube. Orion 27191 starblast 6i intelliscope reflector telescope. The maksutov also called a mak is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly spherically symmetrical. Maksutovcassegrain telescopes i have used a great number of telescopes. This item skywatcher s11520 maksutovcassegrain 127mm black orion 9825 apex 127mm maksutovcassegrain telescope. Skywatcher skymax maksutovcassegrain 180mm telescope. However, the differences in design between the two mean that maksutovcassegrains function slightly differently than scts. Sign up for our newsletter to get the best deals and latest news.
Orion 9823 apex 102mm maksutovcassegrain telescope. I plan on using it a lot and want it to hold up well. Meniscus corrector, which induces not only spherical, but also offaxis aberrations, offers greater flexibility in correcting system aberrations. Orion 150mm maksutovcassegrain telescope optical tube. From refractors to reflectors to cassegrainsthere are so many. Light comes in the open top end of the tube, hits the primary and is reflected to a secondary flat mirror at the top of the tube suspended by a thin vane spider, and is directed out of the side of the tube for viewing or photography. Are schmidtcassegrain telescopes superior to maksutov.
User manuals, orion telescope operating guides and service manuals. Despite their small dimensions they pack a powerful punch. Features of the orion apex 102mm maksutovcassegrain. My notion of superior includes would i notice a difference under normal circumstances.
Balancing aperture with manageability and representing one of the widest apertures in the series, the skywatcher 150mm f12 maksutovcassegrain telescope is powerful while maintaining the portability of the smaller models. Is there any advantage in picture quality by going with a cassegrain reflector or is the quality worse on a cassegrain reflector. Maksutov cassegrain telescopes top brands lowest prices. Orion apex 90mm maksutovcassegrain telescope orion. The maksutov design exchanges the conventional front corrector plate of a schmidt with a convex meniscus lens, resulting in a smaller secondary mirror that limits. To me the skywatcher range of instruments are very good indeed, and suited to amateurs of all kinds and they are not priced out of the market. All these designs have the same purpose, to collect light and bring it to a point of focus so it can be magnified and examined with an eyepiece, but each design does it differently.
I want to buy a telescope in the coming year for astrophotography. Maksutovcassegrain telescopes offer great visual performance, making them ideal for planetary imaging. Orion skyview pro 180mm goto maksutov cassegrain telescope. Makcasses are primarily reflecting telescopes, but they use a corrector lens to eliminate aberrations that would result from the mirror design alone. A star test will determine if a telescopes optics are properly collimated. Maksutovcassegrains are very similar to schmidtcassegrains, but they use convex meniscus lenses instead of corrector plates. Viewfinder meade instruments maksutov telescope cassegrain reflector goto png. I got a chance to meet with valery deryuzhin who signed the interferogram report and supervised final inspection and release. Refractor newtonian reflector maksutovcassegrain schmidtcassegrain. The ultimate guide to celestron optical tubes celestron. Collimating orion starmax and apex maksutovcassegrain. The cassegrain reflector is a combination of a primary concave mirror and a secondary convex. Skywatcher skymax maksutovcassegrain 180mm telescope s11540 skywatchers largest maksutovcassegrain telescope, the 7 skymax provides the same impressive visuals youd get from a refractor, but without the size, weight, and price tag.
The manufacturers listed at any given time during your search refinement offer at least one product that matches other search criteria you have already chosen. A version of reflector specially developed for the classroom. This design puts the focal point at a convenient location behind the primary mirror and the convex. Skyview pro 180mm maksutovcassegrain telescope orion. Orion apex 127mm maksutov cassegrain telescope ships free. Military apofpodpo addresses enjoy our free returns. Advanced comafree acf maksutovcassegrain newtonian reflector apochromatic refractor apo refractor optical tube assembly. Collimating orion starmax and apex maksutovcassegrain telescopes starmax 90,102, and 127, apex 90, 102, and 127 9821,9824,9826,9820,9823,9825 figure 1.