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B01066PM46 Availability: Currently unavailable Score: 1000.000 Category: Electronics Rating: 5 Votes: 4 Find similar products Sky-Watcher Quattro 300P Imaging Newtonian - Large Aperture 12-inch Reflector Optical Tube for Astrophotography. The Quattro Imaging Newtonian is one of the most affordable telescopes with a f/4 focalratio. This astrograph is capable of producing an exposure 6x faster than any f/10 optical tube.Even pricey refractors have trouble reaching a focal ratio this fast. Using a faster optical tubewill shorten the exposure time, giving you more time to photograph nebulae, clusters, and otherdeep sky objects.Like all Sky-Watcher reflectors, our Quattro Imaging Newtonian features aluminum-coated borosilicate mirrors with a quartz overcoat, producing 94% reflectivity. The opticalsystem uses an oversized secondary mirror, providing greater illumination for DSLRs and CCDsusing full-frame sensors. The optical tube is constructed with rolled steel, and features Sky-Watcher’s signature metal-flake Black Diamond finish on the exterior. The interior of the opticaltube uses knife-edge baffles to absorb any stray light from ruining your images.As customary with all Sky-Watcher telescopes, a boat-load of accessories are bundledwith the optical tube. First is a 2-inch dual-speed 10:1 focuser with included 1.25-inch eyepieceadapter, which provides flexibility for either 1.25-inch or 2-inch eyepieces. Also included aretube rings and a V-style dovetail plate, as well as a 9x50 finderscope. For photographerslooking to create a flat field and eliminate vignetting, an optional coma corrector is availableseparately. Parabolic mirrors normally produce some aberrations around the edge of the field ofview (coma), so this corrector is highly recommended for users with large imaging sensors and full-frame DSLRs.	B002JO1L2Q Availability: Currently unavailable Score: 9.615 Category: Electronics Rating: 5 Votes: 2 Find similar products Orion Premium 190mm f/5.3 Mak-Newt Astrograph Telescope. The Premium 190mm Mak-Newt Astrograph delivers crisply detailed and colorful images of deep-sky phenomena with its flat-field, coma-suppressed optics. The telescope's all-machined dual-speed 2 Crayford-style focuser with 11:1 fine focus control provides smooth motion and secure support for DLSR cameras, dedicated astrophotography cameras, and heavy visual accessories. The focuser includes 2 and 1.25 compression ring adapters for scratch-free insertion of eyepieces and other accessories. A T-thread adapter is included for direct attachment of a camera body (may require appropriate T-ring, sold separately). Two included tube rings and a narrow Vixen-style dovetail mounting bar are included for easy attachment of the 22 lb. telescope tube to appropriate mounts and tripods.The 190mm Maksutov-Newtonian Astrograph optics provide tremendous resolution with its optically fast f/5.3 design. The impressive 7.5 aperture ensures plenty of light-gathering ability to capture superb images of even the faintest of deep-sky gems. Attach a camera, such as a DSLR or Orion StarShoot astrophotography camera, and you'll be ready to start producing top-notch astrophotos in no time!The telescope's primary mirror is made of high-grade, low-expansion optical glass with enhanced reflectivity coatings for maximum performance. The primary mirror and the fully multi-coated BK7 meniscus lens combine to render truly spectacular images, with pinpoint stars across the entire field of view. The primary mirror and meniscus lens are securely held in place by three radially positioned nylon-tip set screws, which prevent any possibility of slippage or shifting. The 37.5-long metal tube contains five knife-edge internal baffles for exceptional contrast.The secondary mirror diameter of 64mm provides a very large illuminated field to take full advantage of larger CCD chips, found in DSLR cameras and many popular astrophotography cameras. The 100% fully illuminated field diameter of over 22mm produces brighter images with less vignetting compared to other telescope designs.
B01LWSZVNS Availability: Currently unavailable Score: 8.403 Category: Electronics Rating: 4.5 Votes: 4 Find similar products Celestron CGEM II 800 EdgeHD 8 Schmidt-Cassegrain Telescope. CGEM II 800 HD combines Celestron's newly redesigned CGEM II computerized equatorial mount with its acclaimed EdgeHD optical system. With 8 inches of aperture and our premium StarBright XLT coatings, the CGEM II 800 HD gives you over 800 times the light gathering power than the unaided eye and is the lightest and most portable telescope in its class. OPTICAL TUBE INFO: See the Universe in HD EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view. True Astrograph Quality Many optical designs that advertise themselves as astrographs actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today. Learn more about EdgeHD technology. Improved Performance Superior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestronâs StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum. Mechanical FeaturesIn addition to EdgeHDâs optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night. Mirror clutches- Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor). Tube vents- Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 50-mesh filter guaranteed to let warm air out without letting dust in. Fastar versatility- EdgeHD is the most versatile imaging telescope available today. At its native f/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lensâcustom-designed for your size EdgeHD tubeâand you can increase your field of view without sacrificing optical performance. A Barlow lens gives you added power for high-resolution planetary, lunar and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f/2 wide field imaging. Individually Tested Every EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This âfinal acceptance testâ confirms the EdgeHD will perform in the field and deliver high-quality astroimages. MOUNT INFO: A fresh update to the venerable CGEM mount, the CGEM II has a fresh, attractive, bold appearance and is capable of carrying Celestronâs higher-end SCT optical tubes (up to 11) securely and vibration free, which is ideal for both imaging and visual observing. Capable of holding 40 lbs. of payload and slewing at 5Â° per second, you will be able to instantly point to any of the celestial objects in the database. ERGONOMIC DESIGN CGEM II was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up. INNOVATION The CGEM II series features Celestronâs innovative Polar alignment procedure called All-Starâ¢. All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM II sure to please astroimagers, is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings. PERFORMANCE For objects near the Meridian (imaginary line passing from North to South), the CGEM II will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM II mount has a robust database with over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects. Celestron's CGEM II mount is the perfect fit between the Advanced Series and CGE Series. Offering the portability of the Advanced Series and the precision of the CGE.	B08S75LLYL Price: $1220 Score: 8.065 Category: Electronics Rating: 5 Votes: 1 Find similar products Omegon Apochromatic Refractor Pro APO AP 72/400 Quintuplet OTA. Five lenses, double ED and a flat field of view to marvel at What is it that drives astrophotographers time and again? The desire to capture objects and the sky in high quality. With this apochromat, you can do just that. The specially selected ED glass and a colour-pure image result in observations displaying fine details that would not be possible with basic optics. Experience a new standard of quality for yourself. The highlights at a glance: - 72mm quintuplet ED Apo with five lenses, two of which are made of ED glass for an even more brilliant image - A two-lens integrated corrector ensures a flat and illuminated field, also suitable for full-frame cameras with an image circle of up to 44mm - 3 focuser with a 1:10 reduction ratio: Easily focus larger and heavier cameras with high precision - 140mm back focus - Camera rotates 360° so you can find the right orientation Why these optics reveal more details No more images without contrast. This apochromat shows what is really possible: pure-colour and high-contrast observations and astrophotos. The key is a sophisticated optical design with premium ED glass for a crystal-clear image. Compared to most mirror systems, the better-defined optics allow you to see more and finer details when observing the planets, for example. All surfaces of the lens elements are treated with an effective multi-coating to prevent reflections. Enjoy memorable observations and shots. Large focuser with gearing and ball bearings Full-frame enthusiasts need space: That is precisely what the geared focuser offers. It beautifully complements the premium o.
B07DKYQHTF Availability: Currently unavailable Score: 7.634 Category: Electronics Rating: 5 Votes: 3 Find similar products Omegon Telescope ProNewton N 153/900 OTA. Omegon Pro Newtonian - How to start your astronomy with a real boost Astrophotography or visual observing? This is not a relevant question for this OTA - it works really well for both. This series thrives on the elements that make an OTA a powerful tool for astronomy. Enjoy sharply etched lunar craters, planets showing a wealth of detail, and deep sky objects that simply look brighter than through standard telescopes. The Omegon Pro Newtonian does not do things by halves - the workmanship and quality are first rate, ensuring everything works a treat for your exploration of the night sky. The advantages in a nutshell - excellently engineered OTA - enjoy your observing for many years to come - BK-7 main mirror with 94% reflection - brighter images and much more contrast than a standard mirror - 2 Crayford focuser - smooth focusing so you can easily find the exact point of focus - great back focus - connect your SLR camera or any other cameral - easy set-up - the prism system means the OTA will fits onto any mounts using a Synta/Vixen/Skywatcher/Celestron system High quality metal OTA with excellent processing The telescope's OTA offers you a sound introduction to a fascinating hobby. No cheap plastic, but metal together with excellent workmanship. This is an important prerequisite in the world of telescopes as it ensures you will continue enjoying your observing for many years to come. BK7 glass primary mirror The centrepiece is the main mirror, which is made from BK7 glass. In contrast to 'ordinary.	B000AMV3ZO Availability: Currently unavailable Score: 7.353 Category: Electronics Rating: 3 Votes: 3 Find similar products Zhumell DOB-8 8-inch Dobsonian Reflector Telescope. Anyone who has spent much time in the field looking at stars with amateur astronomers is sure to have heard the term light bucket. Effective yet inexpensive, light buckets provide amateur astronomers with the aperture needed to view faint deep sky object. With the quality and precision designed into the Zhumell Dobson 8, you can have a really nic bucket for gathering all of that starlight. With a traditional Dobsonian mount, the Dobson 8 is easy to use. A 2 focuser accepts a full range of 1.25 and 2 format eyepieces. The 8 mirror provides excellent contrast and definition. Combine these features with quick collimation screws (for easy alignment of your mirror), a black optical tube ( which will acclimate to environmental more quickly than other colors), and an included laser collimator (to make alignment of your mirrors even easier) and you will see that the Zhumell Dobson telescopes are more like 5-gallon pails filled with spectacular views than your standard everyday light bucket.
B000051TN2 Availability: Currently unavailable Score: 7.042 Category: Electronics Rating: 2.3 Votes: 3 Find similar products Celestron Firstscope 80EQ 80mm Refractor Telescope. Product description Refractor telescopes have a long, thin tube in which light passes in a straight line from the front objective lens directly to the eyepiece, at the opposite end of the tube. Simplicity of design, which translates into reliability and ease of use Little or no maintenance requirements Excellent lunar, planetary and binary star viewing. High contrast images with no secondary mirror or diagonal obstruction. Sealed optical tube, to protect the optics and reduce air currents, which tend to degrade image quality. Permanently mounted and aligned objective lens. Celestron's 80mm refractor is a top choice for beginning observers who want to start with a more powerful telescope and for intermediate level astronomers. This instrument performs equally well viewing within our solar system and for deep-sky observing. Starting with a more powerful telescope can be a good option when you're looking for an instrument to grow with as you explore the hobby of astronomy. Firstscope 80EQ The Firstscope 80 EQ (Model #21086) is a good choice for the more serious beginning astronomer. The setting circles and slow motion controls on the R.A. and DEC. axes allow for greater control in both locating and tracking objects, making this equatorial telescope one you can grow with over time as your observing interests expa nd. The achromatic optics are made to Celestron's exacting specifications and are quite excellent. Th Amazon.com The FirstScope 80 EQ is a good choice for the more serious beginning astronomer. The setting circles and slow motion controls on the R.A. and DEC. axes allow for greater control in both locating and tracking objects, making this equatorial telescope one you can grow with over time as your observing interests expand. These telescopes have all glass components, coated optics and smooth functioning mounts, with the added benefit of slow motion controls on the mount for easy adjustments. The FirstScope 80 telescope tubes are glossy black aluminum. The German equatorial mount features setting circles and slow motion controls on the R.A. and DEC axes. These controls will enhance your viewing experience by simplifying both locating and tracking objects. When you're looking for a telescope offering a bit more versatility and control than the altazimuth models, these are the telescopes to consider. The equatorial mount is larger and more rugged than the one supplied with the FirstScope 60's. The tripod is also larger and more rugged than offered on the 60mm sizes or on most competitive 80mm models. The achromatic optics are made to Celestron's exacting specifications and are quite excellent. The standard accessories for this telescope add up to a highly desirable viewing instrument that performs superbly. The FirstScope 80EQ Specifications: 80mm (3.1) Refractor 80mm (3.1) Refractor 900mm Focal Length, f/11 900mm Focal Length, f/11 Equatorial Mount with Setting Circles and Slow Motion Adjustment Cables Equatorial Mount with Setting Circles and Slow Motion Adjustment Cables Sturdy Adjustable Aluminum Tripod with Accessory Tray Sturdy Adjustable Aluminum Tripod with Accessory Tray Telescope Weight: 18 lb. Telescope Weight: 18 lb. The FirstScope 80EQ Standard Accessories: 1-1/4 20mm (45x), 10mm (90x) Eyepieces 1-1/4 20mm (45x), 10mm (90x) Eyepieces 90º Star Diagonal 1-1/4 90º Star Diagonal 1-1/4 StarPointer Finderscope StarPointer Finderscope Equatorial Mount Equatorial Mount The Sky L1 CD ROM The Sky L1 CD ROM Moon Viewing 101 The moon is often one of the first celestial objects a beginner will look at through his or her telescope. Here are a couple hints for you once you get your hands on your new FirstScope 80. Often, it is tempting to look at the Moon when it is full. At this time, the face we see is fully illuminated and its light can be overpowering. In addition, little or no contrast can be seen during this phase. One of the best times to observe the Moon is during its partial phases (around the time of first or third quarter). Long shadows reveal a great amount of detail on the lunar surface. At low power you will be able to see most of the lunar disk at one time. The optional Reducer/Corrector lens allows for breath-taking views of the entire lunar disk when used with a low power eyepiece. Change to higher power (magnification) to focus in on a smaller area. Choose the lunar tracking rate from the NexStar's MENU tracking rate options to keep the moon centered in the eyepiece even at high magnifications.	B09T94NJQD Price: $449.99 Score: 6.993 Category: Electronics Rating: 4 Votes: 9 Find similar products Orion Skyline 6 Dobsonian Reflector Telescope. The Orion SkyLine 6 Dobsonian features an 6 152mm diameter parabolic primary mirror with 94%-96% reflectivity for bright views of celestial treats. The telescope's long 1200mm focal length (f/7.9) will provide some serious magnifying power for observing the Moon and planets, while yielding bright views of deep-sky treats such as star clusters and nebulas. Just aim the optical tube at your target using the included 6x30 crosshair finder scope, then look into the fully multi-coated 25mm or 9mm Plossl eyepiece - it comes with both! - to see your subject at 48x power or a whopping 133x power! The telescope glides smoothly on its base, with adjustable tension on the azimuth (left/right) axis and spring tension on the altitude (up/down) axis. The bearings on both the altitude and azimuth axes are made of UHMW, for silky smooth motion. One standout feature of the Orion SkyLine 6 Dobsonian is its premium quality focuser. No standard-issue cast-metal jobbie, it is a completely CNC machined, single-speed 1.25 Crayford focuser that lets you bring your targets into snappy focus quickly and effortlessly. Having such smooth, incremental focusing control lets you home in on minute surface details, like the cloud bands of Jupiter, the rings of Saturn, and albedo markings on Mars. A handy eyepiece rack for the Dobsonian base is included, which provides a convenient storage spot for your telescope eyepieces and other accessories. Also included is a quick-collimation cap for use in aligning the telescope's mirrors for peak performance. With an assembled weight of 37.5 lbs., the SkyLine 6 Dobsonian is a big but still very portable telescope. The optical tube can be separated quickly from the Dobsonian base for easy, two-component transport, and the base is even outfitted with a large carrying handle. The individual weights of the base and optical tube without accessories are 23.5 lbs. and 12.5 lbs., respectively.
B07XQXTG9Y Availability: Currently unavailable Score: 6.944 Category: Electronics Rating: 1 Votes: 1 Find similar products Omegon Apochromatic Refractor Pro APO AP 71/450 Quadruplet OTA. Better astrophotos that help you discover the sky in a new way. What is it that drives astrophotographers time and again? It is the fascination of depicting the sky in its most beautiful colours and shapes. With this apochromat, you can do just that. The premium ED glass and a colour-pure image make for enjoyable observations with fine details that would not be possible with basic optics. Rediscover the sky. Why these optics reveal more details No more images without contrast. This apochromat shows what is really possible: pure-colour and high-contrast observations and astrophotos. The key is a sophisticated optical design with premium ED glass for a crystal-clear image. Compared to most mirror systems, the better-defined optics allow you to see more and finer details when observing the planets, for example. All surfaces of the lens elements are treated with an effective multi-coating to prevent reflections. Enjoy memorable observations and shots. 2.5 focuser with gearing and ball bearings This 2.5 geared focuser is a small spatial miracle, and large enough that no shading occurs. An ingenious hybrid technology comprising a Crayford focuser and a gear wheel makes it particularly strong and suitable for accessories weighing up to 4kg. The ball bearings provide for smooth focusing, allowing you to easily find the perfect focus. A 1:10 reduction gearing makes precise focusing a breeze. Astrophotographers around the world value precisely these features. 360° rotation for framing the perfect photo. You found the object and focused on it, but with the wrong orientation? Save yourself the trouble of having to start over again at night to align an elongated object with the sensor. This is ea.	B07BGTYHJF Availability: Currently unavailable Score: 6.757 Category: Electronics Rating: 4 Votes: 1 Find similar products APM 2 Erect Image Prism Diagonal with Fast Lock. The APM 2 Erect Image Prism Diagonal with Fast Lock and Ultra Broadband Coating Produced by APM Telescopes, this 2 Erect Image Prism Diagonal provides the finest in optical quality! This erect image prism for Astronomical Observation offers the highest accuracy for maximum magnifications and image brightness, thanks to its new Ultra Broadband compensation. With a 46mm free aperture, it boats the largest opening on the market, allowing use with all 2 eyepieces without vignetting. The APM 2 Erect Image Prism is precisely CNC milled, sure to inspire you with its build form. This Erecting Prism comes with the APM 2 inch Fast Lock to keep your optical instruments secured and fastened by a centering clamping mechanism, while at the same time ensuring an exact alignment on the optical axis with every view! Each APM 2 inch Erect Image Prism Diagonal will include an adapter for 2/1.25 applications.