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 150/750 EQ-3
$ 339.00
Sale price:
$ 289.88
Omegon
Telescope N 130/920 EQ-2
$ 289.00
Sale price:
$ 237.93
Omegon
Advanced Telescope 130/650 EQ-320
$ 399.00
Omegon
Advanced Telescope 150/750 EQ-320
$ 499.00
Omegon
Telescope N 76/700 AZ-1
$ 139.00
Omegon
Telescope N 114/900 EQ-1
$ 239.00
Omegon
Telescope N 126/920 EQ-3
$ 299.00
Omegon
Dobson telescope N 76/300 DOB
$ 99.00
Celestron
Telescope N 130/650 StarSense Explorer DX 130 AZ
$ 640.00
Omegon
Telescope N 150/750 EQ-4
$ 449.00
Skywatcher
Dobson telescope N 76/300 Heritage DOB
RRP:
$ 110.00
Our price:
$ 100.00
Skywatcher
Telescope N 150/750 Explorer 150P EQ3-2
$ 630.00
Skywatcher
Dobson telescope N 130/650 Heritage FlexTube DOB
$ 276.00
Skywatcher
Telescope N 130/900 Explorer EQ-2
$ 311.00
Skywatcher
Telescope N 200/1000 Explorer 200P EQ5
RRP:
$ 940.00
Our price:
$ 860.00
Seben
Star Sheriff 114/1000 EQ3 Reflector Telescope Astronomy Scope
$ 197.00
Sale price:
$ 154.81
Meade
Telescope N 127/1000 Polaris EQ
$ 436.00
Skywatcher
Telescope N 130/900 Explorer EQ-2 with EQ-2-motor drive
$ 380.00
Sale price:
$ 310.66
Omegon
Dobson telescope N 102/640 DOB
$ 229.00
Skywatcher
Dobson telescope N 150/1200 Skyliner Classic DOB
$ 374.00
Skywatcher
Telescope N 114/1000 SkyHawk EQ-1
RRP:
$ 238.00
Our price:
$ 186.00
Omegon
Dobson telescope Advanced X N 254/1250
RRP:
$ 779.00
Our price:
$ 699.00
Omegon
Dobson telescope Advanced N 203/1200
RRP:
$ 712.60
Our price:
$ 579.00
Bresser
Dobson telescope N 150/750 Messier DOB
$ 384.00
Celestron
Telescope N 127/1000 StarSense Explorer LT 127 AZ
$ 301.00
Meade
Telescope N 114/1000 Polaris EQ
$ 405.00
Sale price:
$ 258.71
Omegon
Dobson telescope Advanced N 152/1200
RRP:
$ 582.60
Our price:
$ 399.00
Omegon
Dobson telescope ProDob N 304/1500 DOB II with Deluxe LED finderscope
RRP:
$ 1,247.00
Our price:
$ 1,045.00
Omegon
Dobson telescope ProDob N 254/1250 DOB II
RRP:
$ 1,087.00
Our price:
$ 899.00
Celestron
Telescope N 114/1000 StarSense Explorer LT 114 AZ
$ 270.00
Omegon
Telescope N 114/500 EQ-1
$ 219.00
Skywatcher
Dobson telescope N 150/750 Heritage FlexTube DOB
$ 359.00
Omegon
Telescope N 76/900 EQ-2
$ 199.00
Skywatcher
Telescope N 200/1000 PDS Explorer BD HEQ5 Pro SynScan GoTo
$ 2,030.00
Omegon
Dobson telescope ProDob N 203/1200 DOB II with radiant
RRP:
$ 877.80
Our price:
$ 739.00
Meade
Telescope N 200/800 Astrograph LX85 GoTo
RRP:
$ 3,430.00
Our price:
$ 2,910.00
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.