![Reflecting, Newtonian & Cassegrain Telescope | Who Invented the Reflecting Telescope? - Video & Lesson Transcript | Study.com Reflecting, Newtonian & Cassegrain Telescope | Who Invented the Reflecting Telescope? - Video & Lesson Transcript | Study.com](https://study.com/cimages/videopreview/videopreview-full/screen_shot_2014-12-13_at_12.15.37_am_136815.jpg)
Reflecting, Newtonian & Cassegrain Telescope | Who Invented the Reflecting Telescope? - Video & Lesson Transcript | Study.com
![Grind and Polish a Dobsonian/Newtonian Telescope Mirror With Hand Tools : 8 Steps (with Pictures) - Instructables Grind and Polish a Dobsonian/Newtonian Telescope Mirror With Hand Tools : 8 Steps (with Pictures) - Instructables](https://content.instructables.com/ORIG/FGV/PIXU/KGM9LZWP/FGVPIXUKGM9LZWP.jpg?auto=webp&fit=bounds&frame=1&height=1024&width=1024auto=webp&frame=1&height=150)
Grind and Polish a Dobsonian/Newtonian Telescope Mirror With Hand Tools : 8 Steps (with Pictures) - Instructables
![Amazon.com : HMANE Telescope Reflector Main Mirror 1600mm with Secondary Mirror 40mm, Newton Reflector Spherical Mirror DIY Astronomical Telescope Mirror Kit, 226SQ59LARZVJE14JMZ8XR : Electronics Amazon.com : HMANE Telescope Reflector Main Mirror 1600mm with Secondary Mirror 40mm, Newton Reflector Spherical Mirror DIY Astronomical Telescope Mirror Kit, 226SQ59LARZVJE14JMZ8XR : Electronics](https://m.media-amazon.com/images/I/21jMTBi3YpL._AC_SY580_.jpg)
Amazon.com : HMANE Telescope Reflector Main Mirror 1600mm with Secondary Mirror 40mm, Newton Reflector Spherical Mirror DIY Astronomical Telescope Mirror Kit, 226SQ59LARZVJE14JMZ8XR : Electronics
![Amazon.com : Telescope Accessories Main Mirror D150F750 Newton Reflector Telescope Spherical Main Mirror Lens DIY Astronomical Telescope Mirror Astronomical Telescope : Electronics Amazon.com : Telescope Accessories Main Mirror D150F750 Newton Reflector Telescope Spherical Main Mirror Lens DIY Astronomical Telescope Mirror Astronomical Telescope : Electronics](https://m.media-amazon.com/images/I/31kdl-WaUiL._AC_SY580_.jpg)
Amazon.com : Telescope Accessories Main Mirror D150F750 Newton Reflector Telescope Spherical Main Mirror Lens DIY Astronomical Telescope Mirror Astronomical Telescope : Electronics
![Can you adjust a f/7.7 spherical mirror to act like a f/8.0 parabolidal mirror by racking the focus farther out? - Sky & Telescope - Sky & Telescope Can you adjust a f/7.7 spherical mirror to act like a f/8.0 parabolidal mirror by racking the focus farther out? - Sky & Telescope - Sky & Telescope](http://skyandtelescope.org/wp-content/uploads/NewtCut_m.jpg)