Reflectors (Newtonians)

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Sky-Watcher S11610 Classic 200P Dobsonian Kit

Sky-Watcher S11610 Classic 200P Dobsonian Kit

B&H # SK8TDK MFR # S11610
Key Features
  • Beginner Telescope with Base
  • Bright 200mm Aperture
  • Parabolic Primary Mirror
  • Heavy-Duty Rocker Box
$65500
In Stock
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Celestron NexStar 130SLT 130mm f/5 Reflector Telescope

Celestron NexStar 130SLT 130mm f/5 Reflector Telescope

B&H # CEN130SLT MFR # 31145
Key Features
  • 130mm Newtonian Reflector OTA
  • 650mm Focal Length, f/5 Focal Ratio
  • Anti-Reflection Multi-Coated Optics
  • 1.25" Focuser, 9mm and 25mm Eyepieces
$63995
In Stock
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Celestron StarSense Explorer LT 114AZ 114mm f/9 AZ Reflector Telescope

B&H # CESSELT114R MFR # 22452
Key Features
  • Use Smartphone App for Star Navigation
  • Follow Directions to Find Great Objects
  • Advanced Precise Alignment Algorithm
  • Powerful 114mm Reflector Optical Tube
$23995
In Stock
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Celestron AstroMaster 130EQ-MD 130mm f/5 Reflector Telescope

B&H # CEAM130EQMD MFR # 31051
Key Features
  • 130mm Newtonian Reflector OTA
  • 650mm Focal Length, f/5 Focal Ratio
  • Spherical Mirror
  • CG-3 Manual German Equatorial Mount
$33995
In Stock

Sky-Watcher Heritage 130mm f/5 Tabletop Reflector Telescope

B&H # SKS11705 MFR # S11705
Key Features
  • International Year of Astronomy Edition
  • 130mm Dobsonian Reflector OTA
  • 650mm Focal Length, f/5 Focal Ratio
  • Collapsible Design: Just 14.5" Closed
$27500
In Stock

Celestron StarSense Explorer DX 130AZ 130mm f/5 AZ Reflector Telescope

B&H # CESSEDX130R MFR # 22461
Key Features
  • Use Smartphone App for Star Navigation
  • Follow Directions to Find Great Objects
  • Advanced Precise Alignment Algorithm
  • Oversized 130mm Reflector Optical Tube
$47995
In Stock
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Celestron 114LCM 114mm f/9 Computerized GoTo Reflector Telescope

B&H # CE114LCM MFR # 31150
Key Features
  • 114mm Newtonian Reflector OTA
  • 1000mm Focal Length, f/9 Focal Ratio
  • Aluminum-Coated Parabolic Primary Mirror
  • 1.25" 25mm and 9mm Eyepieces
$43995
In Stock

Celestron StarSense Explorer 8" Smartphone App-Enabled Dobsonian Telescope

B&H # CESSE203DOBT MFR # 22470
Key Features
  • Use Smartphone for Tour of Night Sky
  • StarSense Sky Recognition Technology
  • Dobsonian-Style Base
  • 8" Newtonian Reflector Optical Tube
$79995
In Stock

Sky-Watcher 10" Flextube 250P SynScan GoTo Collapsible Dobsonian Telescope

B&H # SK10GTCDK MFR # S11810
Key Features
  • Large 10" Aperture
  • SynScan Controller Finds 42,000 Objects
  • Collapsible Design for Easy Travel
$1,71500
In Stock

Unistellar eVscope eQuinox 114mm f/4 GoTo Reflector Telescope

B&H # UNEVSEQ MFR # EVSCOPE EQUINOX
Key Features
  • Streams Views to 10 Phones & Tablets
  • On-Board Image Processing Computer
  • Autonomous Field Detection Alignment
  • Auto Light Pollution Filter Software
$1,99900
In Stock
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Celestron PowerSeeker 127EQ 127mm f/8 Reflector Telescope

B&H # CEP127EQ MFR # 21049
Key Features
  • 127mm Newtonian Reflector OTA
  • 1000mm Focal Length, f/7.87 Focal Ratio
  • Multi-Coated Primary Parabolic Mirror
  • Manual German Equatorial Mount
$16999
Reg. $199.99
Save $30.00
Limited supply at this price
In Stock
New Release

Unistellar eQuinox 2 114mm f/4 Reflector Telescope

B&H # UNEQUINOX2 MFR # EQUINOX 2
$2,49900
New Item - Coming Soon
Expected availability: Feb 16, 2023

Celestron FirstScope 76mm f/4 Signature Series Moon Alt-Az Reflector Telescope

B&H # CEFSSMT MFR # 22016
Key Features
  • Graphic of the Moon on Tube
  • 76mm Aperture Newtonian Reflector
  • 300mm Focal Length, f/4 Focal Ratio
  • 1.25" Rack-and-Pinion Focuser
$6486
In Stock

Celestron PowerSeeker 114EQ 114mm f/8 Reflector Telescope

B&H # CEP114EQ MFR # 21045
Key Features
  • 114mm Newtonian Reflector OTA
  • 900mm Focal Length, f/8 Focal Ratio
  • Multi-Coated Primary Parabolic Mirror
  • Manual German Equatorial Mount
$13900
Reg. $189.00
Save $50.00
Limited supply at this price
In Stock

Celestron AstroMaster 130EQ 130mm f/5 Reflector Telescope

B&H # CEAM130EQ MFR # 31045
Key Features
  • 130mm Newtonian Reflector OTA
  • 650mm Focal Length, f/5 Focal Ratio
  • Spherical Mirror
  • CG-3 Manual German Equatorial Mount
$27996
In Stock

Sky-Watcher Flextube 200P 8" Collapsible Dobsonian Telescope

B&H # SKSW8DOBK MFR # S11700
Key Features
  • 8" Dobsonian-Style Reflector
  • 1200mm Focal Length, f/5.9 Focal Ratio
  • Space-Saving Collapsible Tube Design
  • Highly Reflective Borosilicate Mirror
$75500
In Stock

Celestron FirstScope 76mm f/4 Alt-Az Reflector Telescope

B&H # CEFS763004 MFR # 21024
Key Features
  • Names of Astronomers/Scientists on Tube
  • 76mm Aperture Newtonian Reflector
  • 300mm Focal Length, f/4 Focal Ratio
  • 1.25" Rack-and-Pinion Focuser
$6495
In Stock

Celestron AstroMaster 114EQ 114mm f/8.8 Reflector Telescope

B&H # CEAM114EQ MFR # 31042
Key Features
  • 114mm Newtonian Reflector OTA
  • 1000mm Focal Length, f/9 Focal Ratio
  • CG-2 Manual German Equatorial Mount
  • RA and Dec Slow Motion Cables
$24995
In Stock

Sky-Watcher Virtuoso GTi 150P GoTo Tabletop Dobsonian Telescope

B&H # SKVGTI150 MFR # S21205
Key Features
  • 5.9" / 150mm Aperture
  • f/5 Focal Ratio, 750 Focal Length
  • 25mm & 10mm Super Eyepieces
  • SynScan GoTo App for iOS and Android
$47000
Back-Ordered
Expected availability: Jun 06, 2023

Sky-Watcher 6" f/4 Quattro Imaging Newtonian Telescope (OTA)

B&H # SK6QINOTA MFR # S11205
Key Features
  • 6" / 150mm Aperture
  • 600mm Focal Length
  • f/4 Focal Ratio Optimized for Imaging
  • Highly Reflective Borosilicate Mirrors
$59500
Back-Ordered
Expected availability: Jun 06, 2023

Celestron StarSense Explorer 10" Dobsonian Telescope

B&H # CESSE254DOBT MFR # 22471
Key Features
  • 10" / 254mm Aperture, f/4.7 Focal Ratio
  • 1200mm Focal Length
  • 25mm Eyepiece, Red Dot Finderscope
  • Variable-Tension Altitude Bearings
$1,09995
Temporarily Out of Stock
Expected availability: 3-5 weeks

Unistellar eVscope 2 114mm f/4 GoTo Reflector Telescope

B&H # UNEVSCOPE2 MFR # EVSCOPE 2 SINGLE VERSION
Key Features
  • Digital Eyepiece for Visual Observations
  • Streams Views to 10 Phones and Tablets
  • Onboard Image Processing Computer
  • Autonomous Field Detection Alignment
$4,89900
In Stock

Unistellar eVscope 2 114mm f/4 GoTo Reflector Telescope + Backpack

B&H # UNEVS2 MFR # EVSCOPE 2
Key Features
  • Digital Eyepiece for Visual Observations
  • Streams Views to 10 Phones & Tablets
  • On-Board Image Processing Computer
  • Autonomous Field Detection Alignment
$5,19900
In Stock

Celestron Cometron FirstScope 76mm f/4 Alt-Az Reflector Telescope

B&H # CECFSTS MFR # 21023
Key Features
  • 76mm Aperture Newtonian Reflector
  • 300mm Focal Length, f/4 Focal Ratio
  • Aluminum / SiO2 Mirror Coatings
  • 1.25" Rack-and-Pinion Focuser
$7900
In Stock

Celestron AstroMaster 76EQ 76mm f/9.2 Reflector Telescope

B&H # CEAM76EQ MFR # 31035
Key Features
  • 76mm Newtonian Reflector OTA
  • 700mm Focal Length, f/9.2 Focal Ratio
  • Aluminum-Coated Primary Parabolic Mirror
  • CG-2 Manual German Equatorial Mount
$17995
In Stock

Celestron Cometron 114mm f/4 Reflector Telescope

B&H # CEC114AZTS MFR # 21079
Key Features
  • 114 mm Newtonian Reflector
  • 450mm Focal Length, f/4 Focal Length
  • Multicoated Parabolic Primary Mirror
  • 10mm and 20mm Kellner Eyepieces
$19900
In Stock

Celestron ExploraScope 114AZ 4.5" f/8.8 Alt-Az Reflector Telescope

B&H # CEES114AZT MFR # 22103
Key Features
  • Aperture: 114mm / 4.5"
  • Focal Length: 1000mm, f/8.8 Focal Ratio
  • Anti-Reflection Fully Coated Optics
  • 1.25" Rack-and-Pinion Focuser
$19995
In Stock

Celestron PowerSeeker 127EQ 127mm f/8 Reflector Telescope with Accessory Kit

B&H # CEP127EQAK
Key Features
  • 127mm Newtonian Reflector OTA
  • 1000mm Focal Length, f/7.87 Focal Ratio
  • Multi-Coated Primary Parabolic Mirror
  • Manual German Equatorial Mount
$21498
In Stock

Explore Scientific FirstLight 114mm f/4.3 Reflector Telescope

B&H # EXFLN114NT MFR # FL-N114500TN
Key Features
  • 114mm Newtonian Reflector OTA
  • 500mm Focal Length, f/4.3 Focal Ratio
  • Fully Multi-Coated Optics
  • 25mm Eyepiece, Red-Dot Finder
$22999
In Stock

Celestron Omni XLT 150 150mm f/5 EQ Reflector Telescope

B&H # CEOXLT150K MFR # 31057
Key Features
  • 150mm Newtonian Reflector OTA
  • 750mm Focal Length, f/5 Focal Ratio
  • StarBright XLT Multicoated Optics
  • 1.25" 25mm Focal Length Eyepiece
$69995
Back-Ordered

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Learning About Newtonian Reflectors

Newtonian reflectors are a popular choice in astronomical telescopes that use curved mirrors to reflect light onto smaller angled mirrors and into side-mounted eyepieces. Newton developed this telescope to overcome chromatic aberration problems with the lenses used in early refractor telescopes. You can use this simple, yet effective design with a large aperture that's ideal for looking at faint objects in the sky.


What Are Newtonian Reflectors?

Newton telescopes, such as Bushnell reflector telescopes, have a cylindrical shape that's open at the top. A large diameter parabolic primary mirror is at the bottom, and a small flat mirror sits at 45 degrees near the top of the tube. This second mirror reflects light onto an eyepiece mounted on the side of the telescope. Some reflector telescopes have coma corrector lenses to reduce aberrations at the edge of your viewing field. Because the eyepiece is on the side of the telescope, viewing is more comfortable than with comparable lens-based refractor telescopes.

The focal length of the primary mirror in a Newtonian telescope determines its overall length. Compound telescopes, also known as catadioptric (Cassegrain) telescopes, use a combination of two curved mirrors and an end-mounted eyepiece that reduces the overall length of the telescope, while permitting an increase in focal length.


Dobsonian Telescopes

Dobsonian telescopes, such as Tasco reflector telescopes, are Newtonian reflector telescopes mounted on an altazimuth mount. This type of mount has two degrees of movement, one vertical and the other horizontal, and is similar in concept to a photographic tripod. Although the original Dobsonian telescope concept was that it was lighter than comparative Newtonian telescopes, the main attribute of current Dobsonian telescope kits is a mount that's simple and easy to use.


Celestial Tracking Capabilities

While an altazimuth mount is easy to use, it doesn't follow the path taken by stars, so constant horizontal and vertical adjustments are necessary when tracking celestial bodies. An equatorial mount overcomes this problem by tilting the angle of rotation to match the earth's axis of rotation. This satisfies any astrophotographer's need for a long-time exposure. However, you can overcome the disadvantages of the altazimuth mount by using GoTo Dobsonians. These are Dobsonian telescopes with digital axis control that automatically tracks the movement of the stars.


Telescope Aperture and Magnification

A telescope's aperture is the diameter of its primary mirror. Larger mirrors collect more light and are brighter and sharper. The focal ratio is the focal length of the lens divided by its aperture, and as with camera lenses, smaller values are brighter. Determine magnification by dividing the focal length of the lens by the focal length of the telescope eyepiece. As a rule of thumb, it's best to avoid magnifications greater than 50 times per inch of aperture. If you're an amateur photographer, you may want to use a lower magnification, especially when using solar telescopes to view large objects like the sun or moon.


You can find the best Newtonian reflector telescope for your celestial viewing at B&H Photo and Video.