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.
Omegon
Telescope N 114/900 EQ-1
$ 239.00
Omegon
Telescope N 150/750 EQ-3
$ 339.00
Sale price:
$ 299.00
Omegon
Advanced Telescope 130/650 EQ-320
$ 399.00
Sale price:
$ 349.00
Omegon
Telescope N 130/920 EQ-2
$ 289.00
Omegon
Advanced Telescope 150/750 EQ-320
$ 499.00
Skywatcher
Telescope N 130/900 Explorer EQ-2
$ 318.00
Skywatcher
Dobson telescope N 200/1200 Skyliner Classic DOB
$ 510.00
Omegon
Dobson telescope Advanced X N 203/1200
RRP:
$ 579.00
Our price:
$ 479.00
Omegon
Telescope N 76/700 AZ-1
$ 139.00
Omegon
Telescope N 150/750 EQ-4
$ 449.00
Skywatcher
Dobson telescope N 76/300 Heritage DOB
RRP:
$ 112.00
Our price:
$ 103.00
Skywatcher
Telescope N 200/1000 Explorer 200P EQ5
RRP:
$ 960.00
Our price:
$ 880.00
Meade
Telescope N 127/1000 Polaris EQ
$ 446.00
Omegon
Telescope N 126/920 EQ-3
$ 299.00
Skywatcher
Telescope N 150/750 Explorer 150P EQ3-2
$ 640.00
Skywatcher
Telescope N 130/900 Explorer EQ-2 with EQ-2-motor drive
$ 388.00
Hubble Optics
Dobson telescope N 457/2058 UL18 f/4.5 Premium Ultra Light DOB
$ 8,800.00
Sale price:
$ 7,834.64
Skywatcher
Dobson telescope N 130/650 Heritage FlexTube DOB
$ 282.00
Hubble Optics
Dobson telescope N 406/1829 UL16 f/4.5 Premium Ultra Light DOB
$ 6,200.00
Sale price:
$ 5,538.77
Hubble Optics
Dobson telescope N 355/1635 UL14 Premium Ultra Light DOB
$ 5,600.00
Sale price:
$ 4,964.81
Hubble Optics
Dobson telescope N 607/2012 UL24 f/3.3 Premium Ultra Light DOB
$ 20,400.00
Omegon
Dobson telescope Advanced X N 254/1250
RRP:
$ 779.00
Our price:
$ 699.00
Omegon
Dobson telescope N 102/640 DOB
$ 229.00
Skywatcher
Telescope N 200/1000 Explorer 200P EQ5 Pro SynScan GoTo
$ 1,560.00
Skywatcher
Telescope N 150/750 PDS Explorer BD EQ5 Pro SynScan GoTo
$ 1,510.00
Meade
Telescope N 200/800 Astrograph LX85 GoTo
RRP:
$ 3,510.00
Our price:
$ 2,980.00
Meade
Telescope N 114/1000 Polaris EQ
$ 414.00
Bresser
Dobson telescope N 150/750 Messier DOB
$ 393.00
Omegon
Dobson telescope N 76/300 DOB
$ 99.00
Bresser
Dobson telescope N 254/1270 Messier Hexafoc DOB
$ 780.00
Meade
Telescope N 114/1000 StarNavigator NG 114 AZ GoTo
$ 553.77
Hubble Optics
Dobson telescope N 508/1880 UL20 f/3.7 Premium Ultra Light DOB
$ 11,800.00
Celestron
Telescope N 130/650 StarSense Explorer DX 130 AZ
$ 650.00
Hubble Optics
Dobson telescope N 508/2134 UL20 f/4.2 Premium Ultra Light DOB
$ 10,600.00
Bresser
Telescope N 150/1400 Pollux EQ-3
$ 393.00
Skywatcher
Dobson telescope N 150/1200 Skyliner Classic DOB
$ 382.00
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.