Comparing Petzeval Refractor Against Maksutov, Celestron C90 vs William Optics Zenithstar 66ED
8 months ago
24
In making this video I have used these optical instruments:
William Optics Zenithstar Petzeval 66ED Semi-Apo Refractor Telescope.
Celestron C90 Maksutov Telescope.
Celestron 25mm reticuled Kelner eyepiece.
Skywatcher Nirvana 16mm 82° eyepiece.
Tabletop mount of Skywatcher Heritage 100P Newtonian Telescope.
Huawei P30 Pro mobile phone camera.
I observed Moon from inside a room through double glazed windows.
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