PDF Instruction Manual - Meade Instruments Telescopes, Solar ... Telescope Aperture: 203.2mm (8") Focal Ratio: f/10. Celestron C8 Schmidt-Cassegrain Telescope (SCT) - DSO Astro Company Seven | Cleaning Telescope and Binocular Optics PDF 8 LX10 Schmidt-Cassegrain Telescope - Company Seven Add to Cart. Schmidt-Cassegrain; Schmidt-Cassegrain. Updated industrial design offers more rigidity, less flexure and improved aesthetics. Big enough and good enough to do some serious imaging, but light enough to quickly set up and use anytime the urge to observe hits you . As an example In the Meade line, the LX200 is an SCT and the ETX series is an MCT. Take it apart and clean the optics with your choice of cleaner. Find helpful customer reviews and review ratings for Celestron NexStar 6 SE Schmidt-Cassegrain Computerized Telescope - with Accessory Kit (Night Vision Flash Light, Sky Maps, Moon Filter, Optical Cleaning Kit) at Amazon.com. The only mirror that might need more frequently cleaning is the mirror in the diagonal, that is, if your scope uses a diagonal. If you have a Meade LX90 or one of the 8" LX200's you should order the "shorty" knobs, which will avoid a clearance problem that prevents the scope's dust cap from fitting on. If you use a star diagonal with your telescope, as is common for Schmidt-Cassegrain telescopes, remove it before inserting the Collimating Eyepiece. This Celestron AVX6S telescope is a quality 6" Schmidt-Cassegrain on a robust go-to computerized German equatorial mount with features optimized for astrophotography. . The CGEM II 800 Schmidt-Cassegrain Telescope features Celestron's premium StarBright XLT coated optics and the newly redesigned CGEM II computerized equatorial mount. These Eyepieces are designed more for astrophotography to help keep exposures short. Most Newtonian mirrors are held within a Mirror Cell which can be easily removed as one assembly from the telescope tube. Refractors and Newtonian reflector telescopes come equipped with externally-mounted focusers that precisely position an eyepiece or camera near the focal plane of the fixed primary lens or mirror to achieve a sharp image. 6x30 optical finderscope for locating alignment stars. Some telescope designs use mirrors to gather and focus the light (Newtonian reflectors) and others use lenses (), but catadioptric telescopes use a combination of mirrors and lenses to do the job.The SCT telescope has a primary and secondary mirror, but it also uses a very thin lens called a corrector plate to . Collimation tools allow you to collimate optical elements of your telescope and to have the best performances. Celestron Astro Fi 90 Wi-Fi Refractor Telescope. LX200 Schmidt-Cassegrain telescopes now feature new baffle tube designs. The Celestron NexStar Evolution 6 Astronomy Telescope 12090 has been designed to be the ideal tool for any stargazer. With the advantage of additional aperture, you'll be able to enjoy excellent, detailed views of planetary delights such as lunar landscapes . Speaking of optical tubes, this telescope kit includes Celstron's bestselling 8" Schmidt-Cassegrain optical tube. Your item will be sent out the next working day from Shipping to United Kingdom after paymentlovingly wrapped in tissue paper and strong bags Free - UK - 1st Class Standard I will only accept returns if contact is made within 14 days of . The CGEM II 1100 Schmidt-Cassegrain Telescope features Celestron's premium StarBright XLT coated optics and the newly redesigned CGEM II computerized equatorial mount. Toscanoptics company provide also to at the motorized secondary mirror for focusing on the focal plane without shift. Celestron Starbright XLT 5" Schmidt Cassegrain tel. make sure the can is upright when spraying to insure propellant is not splattered onto the lens This might be all you need to do. Precise collimation is essential to good performance for any Schmidt-Cassegrain telescope. 3% more discount if you pay with bank transfer - insert product in cart to get discount. Add to Cart. Autoguider port for long exposure imaging. . We discourage our customers from attempting to remove the Corrector Lens of a Schmidt-Cassegrain or Maksutov-Cassegrain telescope since there can be problems to be overcome that may not be obvious to the novice. This telescope is especially at home as a solid platform for long exposure photography Telescope covers allow you to protect your telescope. I took my Meade 8 inch SCT apart to flock the tube. There are a few ways you can clean your telescope without damaging it any further or causing other problems with how you see through it. Celestron SCTs use 3 small Phillips or hex head screws for adjustment. Some optical tubes hide the screws under a cover that you can easily pry off . It's a beefy telescope setup. Use a cleaning solution to gently lift off any remaining dirt or smudges. The Schmidt-Cassegrain telescope is a member of the catadioptric optical family. Faut-il refaire la collimation des schmidt cassegrain à chaque fois ?Et bien à mon avis il y a 2 cas et je vous explique dans cette vidéo quand refaire cette. Celestron StarSense Explorer DX 102AZ Refractor Telescope. A tough 5/8" piece of closed cell foam, like the kind used for sleeping bag backpacking pads, is ideal, especially the black pads. The SCT is more prevalent, being one of the most popular telescopes. We are the 100% user supported astro buy and sell marketplace. Sign in 0 Cart. $945.95. Collimating your Schmidt-Cassegrain The process of collimating a Schmidt-Cassegrain telescope. Celestron StarSense Explorer DX 6" AZ Schmidt-Cassegrain Telescope. Repeat as needed. With the ultra-long life lithium-ion . Cleaning Tips The camera film will see more light with the shorter focal ratio, but this is not the same for what we see with our eyes through the telescope. . Any telescope or binocular that you use for astronomy, no matter how humble it may be, deserves the best care you can give it including the cleaning of telescope optics.Much of the time you'll be using it right at the limit of its capabilities, and when you're trying to see very faint objects or fine detail, little things make a big difference. What is a Cassegrain telescope? You need to be careful in how you replace the factory screws with the new . A big welcome to our Astromart, CloudyNights, Craigslist, and eBay customers! How do you clean a Maksutov telescope? Collimation tools allow you to collimate optical elements of your telescope and to have the best performances. "Brand new, boxed gift setsorry, unable to send items between th and th august". The A&NC's Ralph Bell shows you how to quickly collimate a Schmidt-Cassegrain telescope using an Astro Engineering Picostar artificial star collimating aid. Place your scope in a clean area, under a bright light source, so you can see what you are doing, and point the scope slightly upwards. So I bought a corrector plate with an attached secondary mirror of an 8-inch Schmidt-Cassegrain, and began a long search for the rest of the parts. Celestron-C8A is 8.0"/203mm Aluminum Schmidt-Cassegrain Telescope Optical Tube Assembly Celestron C8-A Telescope 17" long aluminum optical tube weighs only 13 lbs., making it easy to transport.CelestronC8A Telescope has an 8" aperture, a 2032 mm focal length, and a focal ratio of f/10.Starbright multicoatings are standard for CelestronC8-A. The Schmidt-Cassegrain design also eliminates chromatic aberration, making it a good choice for entry . The regular knobs are OK for the 10" and 12" LX200's, as well as Celestron SCTs. Type of Electronics: Computerized GoTo. A Cassegrain telescope (proposed by Laurent Cassegrain in 1672) uses a primary parabolic mirror and a secondary hyperbolic mirror to reflect the light to the primary through a hole.The secondary mirror produces a diverging and folding effect creating a telescope having a short tube length with a long focal length. Home. Our secondary focuser is an original Toscano design that allows the secondary mirror to move in precise increments without backlash. Despite the long focal length of these telescopes, the OTA itself has a very short length, making the system a compact telescope which is extremely easy to transport.Light first hits an aspherically figured Schmidt corrector plate and is then thrown onto a spherical main mirror. on: cleaning, collimating, maintaining the telescope, mounting, using the telescope in various conditions, computer control, and imaging (wet, digital and CCD). The same process can be used for corrector plates on Schmidt-Cassegrain scopes. The CGEM II 1100 Schmidt-Cassegrain Telescope features Celestron's premium StarBright XLT coated optics and the newly redesigned CGEM II computerized equatorial mount. The SCT is one of the latter types, and I chose this because of the size and aperture. The disadvantage to this design means that large telescopes cannot use them; however, you can get an aesthetically pleasing image with these types if your scope's . Celestron's Signature Optics. It also includes insured delivery back to the customer within UK Mainland (surcharge applies to Scottish Highlands, NI, Islands etc). It is the most lightweight and portable of the three size models. With Optical air can in hand and your telescope parallel with the ground (corrector is perpendicular to the floor) Use 2-4 second bursts spraying at an angle to the corrector plate and about 12 inches away from the lens. 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