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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 114/900 EQ-1
Omegon
Telescope N 114/900 EQ-1
( 4.5 / 5 )
$ 239.00
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Omegon Telescope N 150/750 EQ-3
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Telescope N 150/750 EQ-3
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$ 339.00
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Skywatcher Telescope N 130/900 Explorer EQ-2
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Telescope N 130/900 Explorer EQ-2
$ 326.00
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Omegon Advanced Telescope 130/650 EQ-320
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Advanced Telescope 130/650 EQ-320
( 4 / 5 )
$ 399.00
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$ 349.00
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Omegon Telescope N 130/920 EQ-2
Omegon
Telescope N 130/920 EQ-2
$ 289.00
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Skywatcher Dobson telescope N 200/1200 Skyliner Classic DOB
Skywatcher
Dobson telescope N 200/1200 Skyliner Classic DOB
( 4.9 / 5 )
$ 530.00
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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 Dobson telescope N 130/650 Heritage FlexTube DOB
Skywatcher
Dobson telescope N 130/650 Heritage FlexTube DOB
( 4.75 / 5 )
$ 289.00
Product can be shipped as of 15.11.2024
Omegon Dobson telescope Advanced X N 203/1200
Omegon
Dobson telescope Advanced X N 203/1200
RRP:  $ 579.00
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$ 479.00
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Omegon Telescope N 76/700 AZ-1
Omegon
Telescope N 76/700 AZ-1
( 5 / 5 )
$ 139.00
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Skywatcher Dobson telescope N 76/300 Heritage DOB
Skywatcher
Dobson telescope N 76/300 Heritage DOB
( 3 / 5 )
$ 115.00
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Skywatcher Dobson telescope N 150/750 Heritage FlexTube DOB
Skywatcher
Dobson telescope N 150/750 Heritage FlexTube DOB
( 5 / 5 )
$ 376.00
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Omegon Telescope N 150/750 EQ-4
Omegon
Telescope N 150/750 EQ-4
( 4 / 5 )
$ 449.00
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Skywatcher Telescope N 200/1000 Explorer 200P EQ5
Skywatcher
Telescope N 200/1000 Explorer 200P EQ5
( 4 / 5 )
$ 980.00
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Meade Telescope N 127/1000 Polaris EQ
Meade
Telescope N 127/1000 Polaris EQ
$ 456.00
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Meade Telescope N 114/1000 Polaris  EQ
Meade
Telescope N 114/1000 Polaris EQ
$ 424.00
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Skywatcher Telescope N 150/750 Explorer 150P EQ3-2
Skywatcher
Telescope N 150/750 Explorer 150P EQ3-2
( 5 / 5 )
$ 660.00
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Skywatcher Dobson telescope N 150/750 Heritage FlexTube Virtuoso GTi
Skywatcher
Dobson telescope N 150/750 Heritage FlexTube Virtuoso GTi
$ 590.00
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Bresser Dobson telescope N 130/650 Messier DOB
Bresser
Dobson telescope N 130/650 Messier DOB
$ 261.00
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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
$ 398.00
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Celestron Telescope N 130/650 StarSense Explorer DX 130 AZ
Celestron
Telescope N 130/650 StarSense Explorer DX 130 AZ
$ 670.00
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Omegon Dobson telescope N 76/300 DOB
Omegon
Dobson telescope N 76/300 DOB
( 1 / 5 )
$ 99.00
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Meade Telescope N 200/800 Astrograph LX85 GoTo
Meade
Telescope N 200/800 Astrograph LX85 GoTo
RRP:  $ 3,590.00
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$ 3,050.00
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Omegon Telescope N 126/920 EQ-3
Omegon
Telescope N 126/920 EQ-3
( 4 / 5 )
$ 299.00
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Skywatcher Telescope N 150/750 PDS Explorer BD EQ5 Pro SynScan GoTo
Skywatcher
Telescope N 150/750 PDS Explorer BD EQ5 Pro SynScan GoTo
( 5 / 5 )
$ 1,550.00
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Skywatcher Dobson telescope N 254/1200 Pyrex Skyliner Classic DOB
Skywatcher
Dobson telescope N 254/1200 Pyrex Skyliner Classic DOB
$ 760.00
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Hubble Optics Dobson telescope N 457/2058 UL18 f/4.5 Premium Ultra Light DOB
Hubble Optics
Dobson telescope N 457/2058 UL18 f/4.5 Premium Ultra Light DOB
$ 9,000.00
Sale price:
$ 8,021.12
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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
Our price:
$ 899.00
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Hubble Optics Dobson telescope N 406/1829 UL16 f/4.5 Premium Ultra Light DOB
Hubble Optics
Dobson telescope N 406/1829 UL16 f/4.5 Premium Ultra Light DOB
$ 6,400.00
Sale price:
$ 5,670.61
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Skywatcher Dobson telescope N 150/1200 Skyliner Classic DOB
Skywatcher
Dobson telescope N 150/1200 Skyliner Classic DOB
$ 391.00
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Bresser Dobson telescope N 150/750 Messier DOB
Bresser
Dobson telescope N 150/750 Messier DOB
( 5 / 5 )
$ 402.00
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Celestron Dobson telescope N 254/1200 StarSense Explorer DOB
Celestron
Dobson telescope N 254/1200 StarSense Explorer DOB
$ 1,600.00
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Celestron Telescope N 114/1000 StarSense Explorer LT 114 AZ
Celestron
Telescope N 114/1000 StarSense Explorer LT 114 AZ
$ 282.00
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Celestron Telescope N 127/1000 StarSense Explorer LT 127 AZ
Celestron
Telescope N 127/1000 StarSense Explorer LT 127 AZ
$ 315.00
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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
$ 2,120.00
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Skywatcher Telescope N 254/1200 Explorer 250PDS EQ6 Pro SynScan GoTo
Skywatcher
Telescope N 254/1200 Explorer 250PDS EQ6 Pro SynScan GoTo
$ 2,310.00
ready for shipping in 1-2 weeks

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.