Ronchi and Foucault Tests on the 20" f/4.5 Quartz Telescope Mirror GordonWaite 9:40 14 years ago 105 498 Далее Скачать
Ronchi Test Aluminum telescope mirror D=400mm f3.8 3.7KG。 Astigmatism needs to be addressed luciano jorge ritchie 1:28 1 year ago 3 013 Далее Скачать
Applying Ronchi test to a partially polished 12.5-inch telescope mirror iutubeus 0:26 11 years ago 6 688 Далее Скачать
Camera Holder for Foucault, telescope mirror testing, Foucault and Ronchi Prus Ian 2:15 5 years ago 731 Далее Скачать
