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 B08S75LLYL Price: $1220 Score: 1000.000 Category: Electronics Rating: 5 Votes: 1 Find similar productsOmegon 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. |  B07XQXTG9Y Availability: Currently unavailable Score: 9.524 Category: Electronics Rating: 1 Votes: 1 Find similar productsOmegon 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. |
 B002JO1L2Q Availability: Currently unavailable Score: 8.850 Category: Electronics Rating: 5 Votes: 2 Find similar productsOrion 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. |  B07DKYQHTF Availability: Currently unavailable Score: 8.475 Category: Electronics Rating: 5 Votes: 3 Find similar productsOmegon 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. |
 B01066PM46 Availability: Currently unavailable Score: 8.065 Category: Electronics Rating: 5 Votes: 4 Find similar productsSky-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. |  B0B2X44TCV Price: $2299 Score: 8.065 Category: Electronics Rating: 5 Votes: 2 Find similar productsLaowa 24mm T14 2X Periprobe for Sony FE (Cine-Mod Version). The NEW Laowa 24mm T14 2x Periprobe for Sony FE. This full-frame powerhouse inherits most of the renowned Laowa Probe lens characteristics but with a twist. It now comes with a 90-degree periscope-like front tip for creating formerly impossible shots and makes setups more flexible. The lens is also able to do 360-degree helix rotation to create one-of-a-kind motions. Furthermore, it has a 1/4-inch thread at the front for attaching accessories such as extra lighting or magic arms. Periprobe is a very functional tool that frees your creativity. It is not barely poking into the water or sliding in and sliding out. There are a lot more usages that you can explore with this lens. Periscope Users can hold up or down the camera with the periprobe to create a periscope perspective. It is useful when you shoot something unreachable like the tree hole at 7’ tall or the crab hiding in an underwater cave. It also makes your set-ups easier since you do not need a big tank and waterproof housing for the shots. Stay close to the ground. It is difficult for photographers to film close to the ground as there are always restrictions in set-ups, like the cameras and the lens itself are always obstacles. Some users would dig a hole in the ground for the cameras or need a more complicated pre-shoot set-up. With Periprobe, you could simply stick the lens tip to the ground. Face up & face down With 2x magnification, 85-degree wide AoV, and close working distance, users could create a special close-up face-up and face-down shot that other lenses cannot do. 45-degree tilt-up Tilting up is never a rare perspective you can see in galleries. However, shooting something very small and close to the ground is nearly impossible without a Periprobe as the camera is always a big hindrance. |
 B07H7WK12J Price: $69.99 Score: 7.463 Category: Electronics Rating: 4.1 Votes: 17 Find similar productsMEOPTEX 1.25-8-24mm ZOOM eyepiece,FMC for Telescope with T-Thread. There are a number of things that you will thoroughly enjoy as an owner of this 1.25 8-24mm Zoom Eyepiece which is specifically designed for both visual and photographic use. Equipped with a generous 40° to 60° field of view and a non-click stop adjustment mechanism, this eyepiece allows smooth transitioning between focal lengths, ensuring that the observer can find the perfect combination of field of view and magnification that the target object and seeing conditions will allow. Eyeglass wearers will also find that this eyepiece’s long 15mm to 18mm eye relief combined with a flip down rubber eye guard ensures that even they can easily take advantage of the many benefits provided by this eyepiece’s high quality multi-coated optics and zoom capability. Continuous focal length zoom of 8mm to 24 mm for a wide range of magnification without the need to switch eyepieces.Parfocal over entire range, so no need to refocus as focal length is changed. The eyepiece is threaded at the top for a T-adapter (standard M42x0.75 male thread) and at the bottom for 1.25” filters (standard M28.5x0.6 female thread), enabling owners of any T-thread mountable camera to photograph the planets, the moon and high powered terrestrial targets at broad range of focal lengths. |  B01LWSZVNS Availability: Currently unavailable Score: 7.143 Category: Electronics Rating: 4.5 Votes: 4 Find similar productsCelestron 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 5° 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. |
 B00TQ4LM8K Price: $109.95 Score: 6.897 Category: Electronics Rating: 4.7 Votes: 2 Find similar productsOpteka High Definition 500mm / 1000mm f/8 Preset Telephoto Lens for Nikon Digital & Film SLR Cameras. An Opteka High Definition 500mm preset telephoto lens incorporates not only computer optical design, but also the latest optical multi-coating techniques. The process of multi-coating assures virtually flare free photographs even under adverse lighting conditions resulting in crisp, high contrast pictures.Preset Lenses are designed to retain a full range of exposure, automation and metering capabilities of the cameras on which they are mounted. This lens is great for nature and sports photography. The amazing power of this lens gives you the equivalent of looking through a pair of 10x power binoculars. It has a manual preset diaphragm, a rotating tripod mounting collar and a soft lens pouch.Advances in high-index / low-dispersion optical glasses, new barrel materials, and exotic anti-reflection coatings, along with the latest in computer-aided-design / computer-aided-manufacturing, are combined to produce lenses of unprecedented quality. Diamond-cut from crystal-clear, water-white optical glass, Opteka lenses are ground and polished to a precise precision.SpecificationsFilter Size: 67mmf/Stop Range: f/8.0 (fixed) Minimum Focus Distance: 33.0' (10.0 m)Angle of View: 4.1Deg x 2.7Deg (WxH)Groups/Elements: 4/4Length: 11.7 (297mm)Maximum Diameter: 2.8 (71mm)Weight: 1.41 lbs (640g)Included Items~ Opteka 500mm f/8 Telephoto Preset Lens~ T-Mount Lens Adapter~ Lens Caps~ Lens Pouch~ 10 Year Warranty. |  B00OU9CZ0U Availability: Currently unavailable Score: 6.757 Category: Electronics Rating: 3.1 Votes: 9 Find similar productsOpteka 500-1000mm f/8 HD Mirror Telephoto Lens for Canon EOS 80D, 77D, 70D, 60D, 60Da, 50D, 7D, 6D, 5D, 5DS, 1DS, T7i, T7s, T7, T6s, T6i, T6, T5i, T5, T4i, SL2 and SL1 Digital SLR Cameras. The Opteka manual focus mirror lens is incredibly compact and lightweight. Using an advanced reflex design, this is a mirror lens that is ideally suited for wildlife and sports photography. It has a fixed aperture of f8. It comes complete with a soft pouch and three (3) rear mounted, 30.5mm filters, (ND-2X, ND-4X & Skylight). Opteka mirror lenses incorporates advanced computer designed optics and the latest in multi-coating techniques. The process of multi-coating assures virtually flare free photographs even under adverse lighting conditions resulting in crisp high contrast pictures with full color fidelity. The included Opteka 2X Teleconverter effectively doubles your zoom converting this lens to a 500-1000mm Super Telephoto! Please note that this is a manual lens. You will need to set your camera to manual mode. Specifications Filter Size: 72mm front, 30.5mm rear f/Stop Range: f/8.0 (fixed) Minimum Focus Distance: 5.6' (1.7 m) Magnification: 1:3 Angle of View: 5Deg Groups/Elements: 6/7 Length: 3.4 (8.6 cm) Maximum Diameter: 3.0 (7.6 cm) Weight: 0.79 lb (360 g) Included Items ~ Opteka 500mm f/8 Telephoto Mirror Lens ~ Opteka 2x Teleconverter ~ 3 Filters (Skylight, Nd 2x, Nd 4x) ~ T-Mount Lens Adapter ~ 47th Street Photo Micro Fiber Cleaning Cloth ~ Lens Caps ~ Lens Pouch ~ 10 Year Warranty. |