Introduction: Homemade 90 Degree Image Erecting Prism DIY Refractor Telescope
Homemade Erecting Prism DIY Refractor Telescope
A straightforward 90º Erecting Prism for telescopes to produce a correctly orientated view and a more comfortable viewing position. I can buy it on Ebay but you can do it in home with binoviewer take from microscope broken very easy and cheap, It nice work
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