Reviews 13m Cassegrain Antenna

Orion 5125 1.25-Inch Standard Tele-Extender

  • Essential extender for eyepiece-projection astrophotography with Schmidt-Cassegrain telescopes.
  • Permits high-magnification eyepiece projection astrophotography of the Moon and planets with a Schmidt-Cassegrain telescope.
  • Try your hand at taking awesome, high-resolution astrophotographs of the Moon and planets!.
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Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal

  • 90 diagonal features sophisticated, lab-tested dielectric coatings that boast an astounding 99 percent reflectivity.
  • Dielectric mirror coatings are more durable and more reflective than enhanced aluminum coatings.
  • Diagonal provides a comfortable 90-degree viewing orientation when observing the night sky through a refractor, Maksutov-Cassegrain (Mak-Cass) or Schmidt-Cassegrain telescope.
  • Machined and anodized aluminum housing features machine-threaded baffles for optimized contrast.
  • 1.25" nosepiece barrel is threaded to accept like-sized Orion eyepiece filters.
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Binger New L13M4P71 Replacement Battery Compatible with Lenovo Yoga 3 Pro 1370 T440P（7.6V 44Wh 5900mAh）

  • FITS LAPTOP MODEL:Lenovo Yoga 3 Pro 1370 Series.
  • COMPATIBLE PART NUMBERS:L13M4P71 L14S4P71.
  • 12 Month warranty , 30 Days money return guarantee , 24 x 7 email support.
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Baader Planetarium 2" Clicklock Adapter for Smaller 2" SCT Thread

  • Replace your 1.25” visual back with this SCT to 2” Adapter and enjoy stunning views through 2” eyepieces and other accessories.
  • Internal threads provide a secure connection to the rear cell of most Schmidt-Cassegrain or Maksutov-Cassegrain telescopes.
  • Brass compression ring holds 2" eyepieces or diagonals tightly without scratching their barrels.
  • Use with photo adapters to attach imaging cameras to the rear of your Schmidt or Maksutov telescope.
  • Features a durable, anodized black aluminum housing.
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Astromania 2' SCT 90-Degree Mirror Diagonal with 93% reflectivity Across Visible Spectrum - fits Rear Cells of Schmidt-Cassegrain telescopes and Includes an Adapter to use with Refractor telescopes

  • It fits all rear cells of Schmidt-Cassegrain telescopes and includes an adapter to use with refractor telescopes..
  • The 2" SCT diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images..
  • Allows you to take advantage of the wider field of view provided by two inch eyepieces. Dielectric coatings are more durable than regular or enhanced aluminum coatings, so you will enjoy years of excellent performance from this product..
  • The SCT Adapter has a standard SCT female thread (2", 24 TPI),you can use your refractor diagonal with all telescopes having a standard SCT thread for which you can attach this diagonal directly to Schmidt-Cassegrain telescopes and many Maksutov-Cassegrain telescopes..
  • Associated with 90°mirror diagonals, which let you view objects that are at a 90°angle from the direction the telescope is pointing.Improved attachment design features a brass clamping ring which does not mar, and provides a more secure connection..
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Compound Telescope

  • EXPERTLY MATCHED OPTICS: The Skymax series of Maksutov-Cassegrain optical tubes features matched primary and secondary mirrors with an expertly coated corrector plate that delivers contrast-rich views with charcoal-black skies..
  • 94% REFLECTIVITY MIRROR COATINGS: Using a borosilicate primary mirror with an aluminum coating and a quartz overcoat, Sky-Watcher Maksutov-Cassegrains produce a 94% reflectivity rating for outstanding light transmission..
  • VIXEN-STYLE DOVETAIL: An industry standard, the Vixen-style dovetail is the most commonly used dovetail bar for astronomy..
  • FULLY BAFFLED TUBE: Utilizing a fully-baffled tube, Sky-Watcher Maksutovs prevent stray light from interfering with your viewing experience..
  • EVERYTHING YOU NEED: The 150mm Skymax Maksutov-Cassegrain comes equipped with everything you need to get started, including: : a 28mm 2-inch eyepiece, 2-inch 90-degree star diagonal, and a 9x50 straight-through finderscope..
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Astromania 1.25Inch Metal Collimating Cheshire Eyepiece Without Laser for Newtonian Reflector Telescope - Long Version

  • simply cap the telescope, remove the diagonal, and place the eyepiece directly in the focuser..
  • For aligning optics of Newtonian reflectors, Dobsonian reflectors, and Schmidt-Cassegrain Telescopes (SCTs)..
  • Accurate collimation is essential for high power observing. Stars will become more like pin points of light, and Planetary / Lunar detail will be enhanced..
  • Item was made by aluminum with crosshair at the bottom allow quick and precise centering of the optics..
  • This collimation eyepiece can be used for precisely collimating the Newtonian and Schmidt-Cassegrain reflector telescopes for better image quality..
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Orion 10022 StarMax 90mm TableTop Maksutov-Cassegrain Telescope

  • This grab-and-go TableTop Maksutov-Cassegrain telescope provides powerful views of the Moon and bright planets such as Jupiter, Saturn, and Mars.
  • Weighing just 6.5 lbs. assembled, this compact telescope and base can be taken just about anywhere to provide great views of the night sky while on road-trips, camping, or the short trip out to the backyard.
  • 90mm aperture Maksutov-Cassegrain telescope gathers enough light for beautiful views of brighter deep space objects like globular clusters, nebulas, and many bright galaxies.
  • Nifty tabletop base provides a stable viewing foundation you can set on any sturdy table, or even attach it to a field tripod with a 3/8" or 1/4"-20 threaded post.
  • Includes two 1.25" eyepieces (25mm and 10mm focal lengths), EZ Finder II reflex sight for easy aiming, 90 degree mirror diagonal for comfortable night sky viewing, and more!.
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Sky-Watcher Skymax 127mm Maksutov-Cassegrain - Large Aperture Compound-Style Reflector Telescope

  • EXPERTLY MATCHED OPTICS: The Skymax series of Maksutov-Cassegrain optical tubes features matched primary and secondary mirrors with an expertly coated....
  • 94% REFLECTIVITY MIRROR COATINGS: Using a borosilicate primary mirror with an aluminum coating and a quartz overcoat, Sky-Watcher Maksutov-Cassegrains....
  • VIXEN-STYLE DOVETAIL: An industry standard, the Vixen-style dovetail is the most commonly used dovetail plate for astronomy. In addition to this, all....
  • FULLY BAFFLED TUBE: Utilizing a fully-baffled tube, Sky-Watcher Maksutovs prevent stray light from interfering with your viewing experience..
  • EVERYTHING YOU NEED: The 127mm Skymax Maksutov-Cassegrain comes equipped with everything you need to get started, including: a 28mm 2-inch eyepiece,....
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Sky-Watcher Skymax 150mm Maksutov-Cassegrain - Large Aperture Compound-Style Reflector Telescope

  • EXPERTLY MATCHED OPTICS: The Skymax series of Maksutov-Cassegrain optical tubes features matched primary and secondary mirrors with an expertly coated corrector plate that delivers contrast-rich views with charcoal-black skies..
  • 94% REFLECTIVITY MIRROR COATINGS: Using a borosilicate primary mirror with an aluminum coating and a quartz overcoat, Sky-Watcher Maksutov-Cassegrains produce a 94% reflectivity rating for outstanding light transmission..
  • VIXEN-STYLE DOVETAIL: An industry standard, the Vixen-style dovetail is the most commonly used dovetail bar for astronomy..
  • FULLY BAFFLED TUBE: Utilizing a fully-baffled tube, Sky-Watcher Maksutovs prevent stray light from interfering with your viewing experience..
  • EVERYTHING YOU NEED: The 150mm Skymax Maksutov-Cassegrain comes equipped with everything you need to get started, including: : a 28mm 2-inch eyepiece, 2-inch 90-degree star diagonal, and a 9x50 straight-through finderscope..
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Celestron NexStar 8 SE Schmidt-Cassegrain Computerized Telescope - with Deluxe Accessory Kit 5 Plossl Eyepieces 1.25 Barlow Lens 1.25 Filter Set Accessory Carry Case

  • NexStar 8 Schmidt-Cassegrain - 25mm E-Lux (81x) Eyepiece - StarPointer Finderscope - Star Diagonal & 1.25 - Pre-assembled Steel Tripod - Software:....
  • The worlds most beloved telescope! The classic, 8-inch Schmidt-Cassegrain revolutionized amateur astronomy in the 1970s. Now, the iconic orange tube....
  • Large, 8-inch aperture with excellent light-gathering ability provides spectacular views of the Moon and planets, along with deep sky objects like the....
  • Fully automated, GoTo mount with database of 40,000+ celestial objects automatically locates and tracks objects for you..
  • SkyAlign technology gets your telescope aligned and ready to observe in minutes. Even if youre unfamiliar with the night sky, you can easily align....
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Celestron CPC 1100 StarBright XLT GPS Schmidt-Cassegrain 2800mm Telescope with Tripod and Tube

  • CPC 1100 COMPUTERIZED TELESCOPE: Celestron’s iconic CPC telescope combines legendary 11" Schmidt-Cassegrain optics with updated technology and the latest features for an amazing stargazing experience for beginners and experienced observers alike..
  • 11-INCH APERTURE SCHMIDT-CASSEGRAIN TELESCOPE: Massive, 11-inch diffraction limited optics pack enough light-gathering ability to deliver spectacular views of Solar System and deep sky objects alike..
  • DUAL FORK ARM GOTO MOUNT: With a database of 40,000+ celestial objects, the CPC's beefy GoTo mount locates and tracks objects for you. It's also compatible with our best accessories like StarSense AutoAlign and the SkyPortal WiFi Module..
  • EASY TO SET UP & USE: The CPC's ergonomic design allows one person to set up or move the telescope. SkyAlign technology helps you align the telescope fast. When you're done observing, the telescope breaks down for storage..
  • 9x50 FINDERSCOPE INCLUDED: Center objects perfectly in the eyepiece with a high-quality finderscope with 9x magnification..
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Astromania Universal Dovetail Base for Finder Scope - Ideal for Installation of Finder Scope, Green Laser Pointer Bracket

  • Fits factory drilled holes on Celestron, Meade, and Orion Schmidt-Cassegrain telescopes, attaches directly to Schmidt-Cassegrain Telescope (SCT) optical tube with included mounting hardware..
  • Compliable with finder scope, Laser Pointer bracket or reflex sight bracket on telescopes, great for adding a second or third aiming device to your telescope..
  • Made of high strength Aluminum with Anodizing Aluminium Process. The base is made of die-cast metal and features two large thumbscrew locks. Includes two M5 screws..
  • Ideal for custom installation of any finder scope, EZ Finder reflex sight, and Green Laser Pointer bracket on any telescope. Dovetail base fits finder scope or reflex sight bracket so you can securely attach an aiming device to any telescope. Synta-style dovetail base -- Fit most bracket designs from Celestron, Orion, Sky-watcher, Vixen, etc. Compliable with finder scope, Laser Pointer bracket on telescopes..
  • Drilled (but not threaded) to accommodate screws up to 5mm in diameter. Center-to-center screw hole spacing on your telescope must be from 10.2 to 30.2mm in order for this dovetail base to be compatible..
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