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  • Vixen - 130mm R130Sf (f/5) Newtonian Reflector Telescope - (GP2 Mount)

    Vixen - 130mm R130Sf (f/5) Newtonian Reflector Telescope - (GP2 Mount) Vixen - 130mm R130Sf (f/5) Newtonian Reflector Telescope - (GP2 Mount ) Details Vixen R130Sf Newtonian OTA with GP2 Mount Vixen R130Sf Newtonian Optical Tube Assembly This lightweight 5” reflector is a favorite of many new astronomers. It features remarkable light gathering ability for its price and size. With a standard 20mm Plőssl, more than the entire moon fills the eyepiece. You’ll view innumerable star clusters and dark clouds,

    Highlights:

  • Orion 9959 254mm f/4.7 Reflector Telescope Optical Tube Assembly

    Responding to your requests, we are pleased to offer this reflector optical tube assembly (OTA) for folks who already have an equatorial mount. This optical tube assembly includes Pyrex parabolic mirror optics, upgraded 2" Crayford-style focuser, eyepiece holder, quick-collimation cap, dust cap, and dovetail base for finder scope. Aperture: 254mm (10.0"). Focal length: 1200mm (f/4.7). Has a 2" collimatable focuser with 2" and 1.25" eyepiece holders. Recommended for visual use or astrophotography. Includes

    $467.25
    • Free shipping

    Highlights:

    Telescopes, Camera, Holder, Focal Length, Optical Tube
  • Vixen R200SS 200mm Newtonian Reflector Optical Tube Assembly

    Details Vixen R200SS 200mm Newtonian Reflector Optical Tube Assembly The remarkably fast 200mm (8") f/4 parabolic primary mirror of the Vixen R200SS Newtonian Reflector gives extremely sharp images with no chromatic aberration. The use of state-of-the-art coating technology yields the ideal surface for its f/4 primary mirror. The visual observer will enjoy wide views of deep sky objects. Actual groups of nebula or clusters can be viewed at the same time with this instrument. The telescope's large aperture

    Highlights:

    Optical Tube
  • Orion 254 mm f/4.7 Reflector Telescope Optical Tube Assembly - 09959

    SKU: ORI-09959 Orion 10" f/4.7 Reflector Telescope Optical Tube Assembly Highlights 254mm (10") aperture and 1200mm focal length reflector telescope OTA provides vivid, close views of deep-sky and solar system objects Includes 2" Crayford focuser for smooth, backlash-free focus adjustment Recommended for visual or astrophotographic use Weighs 27.2 pounds Optical tube only, does not include tube rings, mount, or tripod - which can be purchased separately The Orion 254mm f/4.7 Reflector Telescope Optical

    Highlights:

    Telescopes, Optical Tube, High Light
  • Celestron NexStar 90SLT Mak Computerized Telescope (Black)

    Designed to be an affordable entry level to mid-level computerized GoTo telescope, the NexStar SLT refractors, reflectors, and Maks are available in the most popular sizes and are loaded with valuable design features. With preassembled, adjustable stainless steel tripods, and quick release fork arms and tubes, NexStar SLT telescopes can be set up in a matter of minutes – with no tools required! You can see details of the lunar surface, Venus and its phases, polar caps on Mars, Jupiter and its four moons,

    $329.95
    • Free shipping

    Highlights:

    Designer, Affordable, Tripod, Refractor, Computerized, Lunar, Adjustable, Telescopes, Entrylevel, Stainless Steel, Quick Release, Spotting, Reflector
  • Celestron NexStar 127SLT Mak Computerized Telescope (Black)

    Designed to be an affordable entry level to mid-level computerized GoTo telescope, the NexStar SLT refractors, reflectors, and Maks are available in the most popular sizes and are loaded with valuable design features. With preassembled, adjustable stainless steel tripods, and quick release fork arms and tubes, NexStar SLT telescopes can be set up in a matter of minutes – with no tools required! You can see details of the lunar surface, Venus and its phases, polar caps on Mars, Jupiter and its four moons,

    $399.95
    • Free shipping

    Highlights:

    Designer, Affordable, Tripod, Refractor, Computerized, Lunar, Adjustable, Telescopes, Entrylevel, Stainless Steel, Quick Release, Spotting, Reflector
  • PARKS 6" F/6 PRECISION NEWTONIAN TELESCOPE OPTICAL TUBE ASSEMBLY 601-10010

    PARKS 6" F/6 PRECISION NEWTONIAN TELESCOPE OPTICAL TUBE ASSEMBLY 601-10010 MSRP: $1,155.00 Sale Price: $699.95 Savings $455.05 Parks Newtonian Reflector 6" F/6 Precision O.T.A. Item No. 601-10010 Manuf. No. Parks Optical 601-10010 Parks 6" F-6 Precision Newtonian Reflector Optical Tube Assembly Clear Aperture (in.): 6 Clear Aperture (mm): 152 Focal Length (in.): 36 Focal Length (mm): 914 Secondary Size (in.): 1.55 Nominal Tube Length (in.): 36 Tube Inside Diameter (in.): 7 Tube Outside Diameter. (in.):

    $699.95
    • Sale

    Highlights:

    Optical Tube
  • Celestron - C9.25-A XLT (CGE) Optical Tube Assembly

    Celestron - C9.25-A XLT (CGE) Optical Tube Assembly Celestron - C9.25-A XLT (CGE) Optical Tube Assembly 91027 -XLT Details Like most Schmidt-Cassegrain telescopes, the Celestron C9.25-A XLT has a focal ratio of f/10, meaning it is quite suitable for looking at many different celestial objects without the annoying optical disturbances of pure refractors and reflectors like chromatic aberration. The bring excellent light transmission from the corrector to the eyepiece ensuring as little light is wasted as

    Highlights:

    Ccd Image, Long, Designer, Mirror, Diagonal, Celestial Objects, Light Transmission, Accessory, Telescopes, Focal Length, Aluminum, High Quality, Bright, Optical Tube
  • Orion 203 mm f/4.9 Reflector Optical Tube Assembly - 09788

    Orion 203 mm f/4.9 Reflector Optical Tube Assembly - 09788 Orion 203 mm f/4.9 Reflector Optical Tube Assembly - 09788 SKU: ORI-09788 Orion 203mm f/4.9 Reflector OTA With Crayford Focuser 203mm (8") aperture and 1000mm focal length f/4.9 reflector telescope optical tube for eye-popping views of deep sky and solar system objects alike Also works well as an astrophotography telescope for shooting wide-field subjects Features a 2" Crayford focuser with a step-down adapter for use of both 2" and 1.25" eyepieces

    Highlights:

  • 254mm f/4.7 Reflector Telescope Optical Tube Assembly

    Orion 254mm f/4.7 Reflector Telescope Optical Tube Assembly 78 of 110 Orion 254mm f/4.7 Reflector Telescope Optical Tube Assembly $529.99 3 easy payments of $176.66 254mm (10") aperture and 1200mm focal length reflector telescope optical tube provides vivid, close views of deep-sky and solar system objects Includes 2" Crayford focuser for smooth, backlash-free focus adjustment Recommended for visual or astrophotographic use Weighs 27.2 pounds Optical tube only, does not include tube rings, mount, or tripod

    Highlights:

    Telescopes, Optical Tube
  • Orion 254mm f/4.7 Reflector Telescope Optical Tube Assembly

    Responding to your requests, we are pleased to offer this reflector optical tube assembly (OTA) for folks who already have an equatorial mount. This optical tube assembly includes Pyrex parabolic mirror optics, upgraded 2" Crayford-style focuser,...

    Highlights:

    Telescopes, Optical Tube
  • Cassini Optics C-1202 1100mm x 102mm Astronomical Reflector Telescope

    Cassini Optics C-1202 1,100mm x 102mm Astronomical Reflector Telescope. The perfect first Telescope for the amateur astronomer! Bring everything clearly into view... stars, planets, birds. Or just have fun on your own corner of Earth. Discover the universe with this Reflector Telescope, complete with Planetarium CD-ROM software, tripod, eyepieces and more to get you started. From Cassini Optics, makers of fine affordable optics. Specs: 1,100mm x 102mm catadioptric optical tube assembly; Diffraction limited

    $278.76
    • Free shipping

    Highlights:

    Amateur Astronomers, Designer, Planetary, Affordable, Astronomical, Corner, Tripod, Slow Motion Controls, Catadioptric, Universal, Accessory, Clear, Adjustable, Telescopes, Metal, Heavy Duty, Steel, Altazimuth, Optical Tube, Reflector
  • Celestron NexStar 130SLT Telescope

    "The popularity of our NexStar 114 models inspired us to go bigger! We are proud to introduce NexStar 130 SLT. The NexStar 130 SLT has 30% more light-gathering power than our 114mm telescope. And the 130 SLT, like the other models in the SLT Series, comes with a fully computerized hand control. The computerized hand control gives you the ability to automatically slew to any of its 4,000+ objects, including over 600 galaxies, 300 clusters and dozens of beautiful binary stars. With its pre-assembled,

    Highlights:

    Astronomical, Computerized, L, Adjustable, Powered, Belt, Control, Flash, High Quality, Steel, Optical Tube, Altazimuth, Designer, Tripod, Mirror, Lunar, Celestial Objects, Computer, Accessory, Color, Telescopes, Led, Stainless Steel, Quick Release, Sturdy, Reflector
  • Celestron - C9.25-A XLT (CG-5) Optical Tube Assembly

    Celestron - C9.25-A XLT (CG-5) Optical Tube Assembly Celestron - C9.25-A XLT (CG-5) Optical Tube Assembly 91025 -XLT Details Like most Schmidt-Cassegrain telescopes, the Celestron C9.25-A XLT has a focal ratio of f/10, meaning it is quite suitable for looking at many different celestial objects without the annoying optical disturbances of pure refractors and reflectors like chromatic aberration. The bring excellent light transmission from the corrector to the eyepiece ensuring as little light is wasted

    Highlights:

    Ccd Image, Long, Designer, Mirror, Diagonal, Celestial Objects, Light Transmission, Accessory, Telescopes, Focal Length, Aluminum, High Quality, Bright, Optical Tube
  • Vixen Optics - VMC110L Modified Cassegrain OTA 26052

    One of the best multi purpose Grab and Go Reflector Telescopes. This is a compact optical tube, with features found on our higher end telescopes. Suitable for viewing the night sky or birds in far off trees. The Vixen VMC110L Reflector, is a 110 mm (4.33 inch) aperture modified Cassegrain f/9.4 optical tube assembly.The VMC110L includes a built in slide mirror. Install 2 different eyepieces and change views easily. Or, attach your camera to one and an eyepiece to the other and capture images with ease.With

    $299.99
    • Free shipping

    Highlights:

  • KONUS REFLECTOR TELESCOPE, KONUSKY EVOLUTION 200 1793

    KONUS REFLECTOR TELESCOPE, KONUSKY EVOLUTION 200 1793 Konus Reflecting Sale Price: $849.99 Konus Konusky Evolution 200 Reflector Telescope Item No. 119-30200 Manuf. No. Konus 1793 KONUSKY EVOLUTION 200 Konusky Evolution 200 Features Auminized and over-coated primary mirror, metal tube assembly, precision heavy-duty advanced equatorial mount "Super Polar Evolution" with motors for both axes and with 6x20 polar bore scope. Sturdy adjustable metal tripod (from 2.4' to 4').Achromatic finderscope 9x50, 90deg.

    $849.99
    • Sale

    Highlights:

    Advanced, Achromatic, Equatorial, Reflector
  • Optical Tube Assemblies

    Optical Tube Assemblies Optical Tube Assemblies Optical tube assemblies, commonly abbreviated by astronomers as OTAs are simply the tube of the telescope where the optics are internally located. OTAs can be helpful in a situation in which an observer has a compatible mount and doesn't want to buy a whole new telescope with a mount included. Optical Tube Assemblies can come in the form of Maksutov -Cassegrain , Astrographs, Reflectors, Refractors, Schmidt-Cassegrains and many others! With the right mounting

    Highlights:

    Telescopes, Astronomical, Tripod, Mirror, Clear Aperture, Performance, Optical Tube, Total
  • Orion 254mm f/4.7 Reflector Telescope Optical Tube Assembly

    "Responding to your requests, we are pleased to offer this reflector optical tube assembly (OTA) for folks who already have an equatorial mount. This optical tube assembly includes Pyrex parabolic mirror optics, upgraded 2"" Crayford-style focuser, eyepiece holder, quick-collimation cap, dust cap, and dovetail base for finder scope. Aperture: 254mm (10.0""). Focal length: 1200mm (f/4.7). Has a 2"" collimatable focuser with 2"" and 1.25"" eyepiece holders. Recommended for visual use or astrophotography.

    $529.99
    • Free shipping

    Highlights:

    Telescopes
  • Vixen VIXEN VMC110L Reflector (ITEM #26052)

    Vixen VIXEN VMC110L Reflector (ITEM #26052) One of the best multi purpose Grab and Go Reflector Telescopes. This is a compact optical tube, with features found on our higher end telescopes. Suitable for viewing the night sky or birds in far off trees. The Vixen VMC110L Reflector, is a 110 mm (4.33 inch) aperture modified Cassegrain f/9.4 optical tube assembly. The VMC110L includes a built in slide mirror. Install 2 different eyepieces and change views easily. Or, attach your camera to one and an eyepiece to

    Highlights:

  • Orion 8" F/4.9 Newtonian Reflector OTA

    Orion 8" F/4.9 Newtonian Reflector OTA Orion 8" F/4.9 Newtonian Reflector OTA Item # OR-9788 8" of aperture and 1000mm focal length for eye-popping views of deep sky and solar system objects. The Orion 203mm F/4.9 SVP 8 Reflector Tube Assembly works well as an astrophotography telescope for shooting wide-field subjects Features a 2" Crayford focuser with a step-down adapter for use of both 2" and 1.25" eyepieces and accessories The Orion 203mm F/4.9 SVP 8Reflector Tube Assembly includes low profile 2"

    Highlights:

  • Celestron NexStar 90SLT Telescope

    "Designed to be an affordable entry level to mid-level computerized GoTo telescope, the NexStar SLT refractors, reflectors, and Maks are available in the most popular sizes and are loaded with valuable design features. With preassembled, adjustable stainless steel tripods and quick release fork arms and tubes, NexStar SLT telescopes can be set up in a matter of minutes G€“ with no tools required! You can see details of the lunar surface, Venus and its phases, polar caps on Mars, Jupiter and its four moons,

    Highlights:

    Astronomical, Computerized, L, Adjustable, Control, Flash, High Quality, Bright, Optical Tube, Altazimuth, Designer, Affordable, Gps, Tripod, Refractor, Celestial Objects, Lunar, Computer, Accessory, Telescopes, Internal Battery, Entrylevel, Stainless Steel, Quick Release, Sturdy, Spotting, Reflector
  • Orion StarBlast 6 Astro Reflector Telescope

    -> Orion StarBlast 6 Astro Reflector Telescope Model: 10016 Orion StarBlast 6 Astro Reflector Telescope Orion StarBlast 6 Astro Reflector Telescope Fun, user-friendly telescope design lets beginning astronomers and seasoned hobbyists navigate the night sky with ease Big 150mm (5.9") parabolic mirror optics reveal the moon, planets and deep-sky objects in rich detail. Compact and highly portable; weighs only 23.5 lbs. and has built-in carrying handles in the base. Sturdy swivel base comes pre-assembled in

    Highlights:

    Combination, Rocket, Versatile, Amateur Astronomers, Designer, Astronomical, Portable, Tripod, Round, Lunar, Sturdy Swivel, Box, Parabolic Reflector, Telescopes, Convenient, Night, Equatorial, Bright, Compact, Wide Field, Performance, Optical Tube, Carrying, Reflector
  • Celestron - NexStar 127SLT Maksutov-Cassegrain Computerized Telescope 127SLT

    Designed to be an affordable entry level to mid-level computerized GoTo telescope, the NexStar SLT refractors, reflectors, and Maks are available in the most popular sizes and are loaded with valuable design features. With preassembled, adjustable stainless steel tripods and quick release fork arms and tubes, NexStar SLT telescopes can be set up in a matter of minutes - with no tools required! You can see details of the lunar surface, Venus and its phases, polar caps on Mars, Jupiter and its four moons,

    $468.99
    • Free shipping

    Highlights:

    Designer, Affordable, Tripod, Refractor, Computerized, Lunar, Adjustable, Telescopes, Entrylevel, Stainless Steel, Quick Release, Spotting, Reflector
  • Orion StarBlast 6 Astro Reflector Telescope

    Orion StarBlast 6 Astro Reflector Telescope Orion StarBlast 6 Astro Reflector Telescope Item # OR-9926 Fun, user-friendly telescope design lets beginning astronomers and seasoned hobbyists navigate the night sky with ease Big 150mm (5.9") parabolic mirror optics of the Orion StarBlast 6 reveal the moon, planets and deep-sky objects in rich detail. Compact and highly portable; weighs only 23.5 lbs. and has built-in carrying handles in the base. Sturdy swivel base on the Orion StarBlast 6 comes pre-assembled

    Highlights:

    Combination, Rocket, Versatile, Amateur Astronomers, Designer, Astronomical, Portable, Tripod, Directional, Round, Lunar, Sturdy Swivel, Box, Telescopes, Convenient, Night, Equatorial, Compact, Wide Field, Performance, Optical Tube, Carrying, Reflector
  • Orion 203mm f/4.9 Reflector Tube with Crayford-Style Focuser

    "Responding to your requests, we are pleased to offer this reflector optical tube assembly (OTA) for folks who already have an equatorial mount. This optical tube assembly includes parabolic mirror optics, center marked for easy collimation. It has an upgraded 2"" Crayford-style focuser (with 1.25"" eyepiece adapter), quick-collimation cap, dust cap, and a dovetail base that accommodates any Orion finder scope. Pre-tapped holes in the rear cell allow attachment of an Orion Cooling Accelerator Fan (sold

    $299.99
    • Free shipping

    Highlights:

  • KONUS REFLECTOR TELESCOPE, KONUSKY EVOLUTION 200 1793

    KONUS REFLECTOR TELESCOPE, KONUSKY EVOLUTION 200 1793 Reflecting Sale Price: $849.99 Konus Konusky Evolution 200 Reflector Telescope Item No. 119-30200 Manuf. No. Konus 1793 KONUSKY EVOLUTION 200 Konusky Evolution 200 Features Auminized and over-coated primary mirror, metal tube assembly, precision heavy-duty advanced equatorial mount "Super Polar Evolution" with motors for both axes and with 6x20 polar bore scope. Sturdy adjustable metal tripod (from 2.4' to 4').Achromatic finderscope 9x50, 90deg.

    $849.99
    • Sale

    Highlights:

    Telescopes, Metal, Holder, Tripod, Heavy Duty, Mirror, Diagonal, Sturdy, Coated, Steel, Accessory, Adjustable
  • Celestron NexStar 90 SLT Computerized Telescope Multicolor - 22087

    Shop for Telescopes from Telescopes.com! Designed to be an affordable entry level to mid-level computerized GoTo telescope the NexStar SLT refractors reflectors and Maks are available in the most popular sizes and are loaded with valuable design features. With preassembled adjustable stainless steel tripods and quick release fork arms and tubes NexStar SLT telescopes can be set up in a matter of minutes with no tools required! You can see details of the lunar surface Venus and its phases polar caps on Mars

    $419.95
    • Free shipping

    Highlights:

    Astronomical, Computerized, Adjustable, Powered, Control, Flash, Remote, Holder, Handsfree, High Quality, Cradle, Bright, Performance, Optical Tube, Altazimuth, Designer, Affordable, Tripod, Refractor, Lunar, Celestial Objects, Computer, Accessory, High Precision, Color, External Battery, Telescopes, Internal Battery, Entrylevel, Battery, Sturdy, Quick Release, Stainless Steel, Reflector
  • Celestron Nexstar 90slt Mak Computerized Telescope (black)

    TRANSLATE Arabic Chinese French German Greek Indonesian Italian Hindi Japanese Korean Swedish Portuguese Russian Spanish Celestron NexStar 90SLT Mak Computerized Telescope (Black)Designed to be an affordable entry level to mid-level computerized GoTo telescope, the NexStar SLT refractors, reflectors, and Maks are available in the most popular sizes and are loaded with valuable design features. With preassembled, adjustable stainless steel tripods, and quick release fork arms and tubes, NexStar

    $560.92

    Highlights:

    Designer, Telescopes, Affordable, Tripod, Entrylevel, Refractor, Computerized, Quick Release, Stainless Steel, Adjustable, Reflector
  • Vixen VMC95L Modified Cassegrain Telescope with Mini-Porta Mount

    Vixen VMC95L Modified Cassegrain Telescope with Mini-Porta Mount Item# VIX249 List Price: $530.00 Save 17% Modified Cassegrain reflector telescope with mini-porta Mount 95mm aperture, 1045mm focal length; f/11 Red dot finderscope PL25mm eyepiece and multicoated lenses Description The Vixen VMC95L, is a 95 mm (3.7 inch) aperture modified Cassegrain f/11 optical tube assembly. The VMC95L features a curved vane Secondary Mirror Spider to reduce diffraction effects. Like its larger cousins the VMC110L,

    $439.00
    • Sale

    Highlights:

    Designer, Camera, Portable, Slow Motion Controls, Lens, Mirror, Diagonal, Universal, Dovetail, Mini, Telescopes, Shield, Holder, Focal Length, Beginner, Multicoated Lenses, Optical Tube, Reflector
  • Apertura AD8 Dobsonian Reflector Telescope WITH Tweaker's Dream Package

    NEW ! • Hand -adjustable secondary collimation knobs • Upgraded Washers for the secondary mirror • Soft-grip guide knob • Additional 5-hole accessory tray for base Flocked interior – Flocking has been used by astronomers in the know for many years to squeeze every last ounce of performance from their scopes, by soaking up any stray light inside the optical tube that might otherwise spoil the view. So we apply high quality flocking to the ENTIRE inside surface of the Optical Tube Assembly from end-to-end,

    $429.98
    • Sale

    Highlights:

    Soft Grip, Designer, Astronomical, Dobsonian, Directional, Laser, Mirror, Elegant, Plastic, Accessory, Custom, Adjustable, Replacement, Telescopes, Shield, High Quality, Stainless Steel, Performance, Solid Piece, Optical Tube, Reflector
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