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The Newtonian Reflector, named after Isaac Newton, is the absolute classic reflector telescope.

The main mirror, which collects light and reflects it, is located at the lower end of the tube. The smaller secondary mirror is located in the top section. It deflects the light by 90°. The focuser, in which one can deploy an eyepiece or camera in order to focus the image, is also located here.

The advantage of this system is that there are no lenses involved, and therefore no chromatic aberration arises. In addition, this design offers the largest aperture for the money.

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Omegon Telescope N 150/750 EQ-3
Omegon
Telescope N 150/750 EQ-3
( 4.29 / 5 )
$ 339.00
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Omegon Telescope N 130/920 EQ-2
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Telescope N 130/920 EQ-2
$ 289.00
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Omegon Advanced Telescope 130/650 EQ-320
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Advanced Telescope 130/650 EQ-320
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$ 399.00
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Omegon Advanced Telescope 150/750 EQ-320
Omegon
Advanced Telescope 150/750 EQ-320
$ 499.00
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Skywatcher Telescope N 130/900 Explorer EQ-2
Skywatcher
Telescope N 130/900 Explorer EQ-2
$ 314.00
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Omegon Telescope N 76/700 AZ-1
Omegon
Telescope N 76/700 AZ-1
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$ 139.00
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Omegon Telescope N 114/900 EQ-1
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Telescope N 114/900 EQ-1
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$ 239.00
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Omegon Telescope N 126/920 EQ-3
Omegon
Telescope N 126/920 EQ-3
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$ 299.00
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Omegon Dobson telescope N 76/300 DOB
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Dobson telescope N 76/300 DOB
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$ 99.00
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Omegon Telescope N 150/750 EQ-4
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Telescope N 150/750 EQ-4
( 4 / 5 )
$ 449.00
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Celestron Telescope N 130/650 StarSense Explorer DX 130 AZ
Celestron
Telescope N 130/650 StarSense Explorer DX 130 AZ
$ 640.00
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Skywatcher Dobson telescope N 76/300 Heritage DOB
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Dobson telescope N 76/300 Heritage DOB
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RRP:  $ 111.00
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$ 101.00
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Skywatcher Telescope N 150/750 Explorer 150P EQ3-2
Skywatcher
Telescope N 150/750 Explorer 150P EQ3-2
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$ 630.00
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Skywatcher Dobson telescope N 130/650 Heritage FlexTube DOB
Skywatcher
Dobson telescope N 130/650 Heritage FlexTube DOB
( 4.75 / 5 )
$ 279.00
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Skywatcher Telescope N 200/1000 Explorer 200P EQ5
Skywatcher
Telescope N 200/1000 Explorer 200P EQ5
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RRP:  $ 950.00
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Skywatcher Telescope N 130/900 Explorer EQ-2 with EQ-2-motor drive
Skywatcher
Telescope N 130/900 Explorer EQ-2 with EQ-2-motor drive
$ 384.00
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$ 313.83
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Meade Telescope N 127/1000 Polaris EQ
Meade
Telescope N 127/1000 Polaris EQ
$ 440.00
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Seben Star Sheriff 114/1000 EQ3 Reflector Telescope Astronomy Scope
Seben
Star Sheriff 114/1000 EQ3 Reflector Telescope Astronomy Scope
$ 199.00
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$ 156.39
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Omegon Dobson telescope N 102/640 DOB
Omegon
Dobson telescope N 102/640 DOB
$ 229.00
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Skywatcher Dobson telescope N 150/1200 Skyliner Classic DOB
Skywatcher
Dobson telescope N 150/1200 Skyliner Classic DOB
$ 377.00
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Skywatcher Telescope N 114/1000 SkyHawk EQ-1
Skywatcher
Telescope N 114/1000 SkyHawk EQ-1
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RRP:  $ 241.00
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$ 188.00
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Omegon Dobson telescope Advanced X N 254/1250
Omegon
Dobson telescope Advanced X N 254/1250
( 5 / 5 )
RRP:  $ 779.00
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$ 699.00
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Meade Telescope N 114/1000 Polaris  EQ
Meade
Telescope N 114/1000 Polaris EQ
$ 409.00
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$ 261.35
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Omegon Dobson telescope Advanced N 152/1200
Omegon
Dobson telescope Advanced N 152/1200
RRP:  $ 582.60
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$ 399.00
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Omegon Dobson telescope Advanced N 203/1200
Omegon
Dobson telescope Advanced N 203/1200
RRP:  $ 712.60
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$ 579.00
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Celestron Telescope N 127/1000 StarSense Explorer LT 127 AZ
Celestron
Telescope N 127/1000 StarSense Explorer LT 127 AZ
$ 304.00
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Omegon Dobson telescope ProDob N 304/1500 DOB II with Deluxe LED finderscope
Omegon
Dobson telescope ProDob N 304/1500 DOB II with Deluxe LED finderscope
RRP:  $ 1,247.00
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$ 1,045.00
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Omegon Dobson telescope ProDob N 254/1250 DOB II
Omegon
Dobson telescope ProDob N 254/1250 DOB II
RRP:  $ 1,087.00
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$ 899.00
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Celestron Telescope N 114/1000 StarSense Explorer LT 114 AZ
Celestron
Telescope N 114/1000 StarSense Explorer LT 114 AZ
$ 272.00
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Omegon Telescope N 114/500 EQ-1
Omegon
Telescope N 114/500 EQ-1
$ 219.00
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Skywatcher Dobson telescope N 150/750 Heritage FlexTube DOB
Skywatcher
Dobson telescope N 150/750 Heritage FlexTube DOB
( 5 / 5 )
$ 363.00
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Omegon Telescope N 76/900 EQ-2
Omegon
Telescope N 76/900 EQ-2
$ 199.00
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Skywatcher Telescope N 200/1000 PDS Explorer BD HEQ5 Pro SynScan GoTo
Skywatcher
Telescope N 200/1000 PDS Explorer BD HEQ5 Pro SynScan GoTo
$ 2,050.00
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Omegon Dobson telescope ProDob N 203/1200 DOB II with radiant
Omegon
Dobson telescope ProDob N 203/1200 DOB II with radiant
RRP:  $ 877.80
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$ 739.00
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Meade Telescope N 200/800 Astrograph LX85 GoTo
Meade
Telescope N 200/800 Astrograph LX85 GoTo
RRP:  $ 3,470.00
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$ 2,940.00
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Omegon Dobson telescope Push+ mini N 150/750 Pro
Omegon
Dobson telescope Push+ mini N 150/750 Pro
RRP:  $ 816.80
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$ 799.00
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This is how the Newtonian telescope is constructed

This is how the Newtonian telescope is constructed

Light enters at the upper end into the tube. At the lower end there is a main mirror, which can be either spherical or parabolic in shape. The mirror reflects the light back. So that the focal point of the mirror is not in front of the tube opening (and therefore obscured by your head when observing), a secondary mirror is located in the top section. This is a plane mirror which deflects the light by 90° and directs it to one side. Then there is the focuser in which you can insert an eyepiece for observing. In order to focus, that is to get the sharpest possible image, turn the focus wheel on the focuser slightly in either direction.