Homemade Erecting Prism Diagonal for Refractor Telescope DIY Helical Focuser

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Introduction: Homemade Erecting Prism Diagonal for Refractor Telescope DIY Helical Focuser

Homemade Erecting Prism Diagonal for Refractor Telescope DIY Helical Focuser

Erecting Prism Diagonal 90-degree diagonal features an image erecting Amici prism that allows you to look into a telescope at a 90 degree angle. It produces an image that is oriented properly, which means that the image is upright and correct from left to right
A focuser holds the eyepiece and allows it to be moved along the optical axis to achieve a sharp image. In helical focuser, the drawtube has a helical thread outside. I make them from old binoviewer of microscope This design offers a fast & smooth helical movement, no slop, and backlash free performance, with 10 mm travel. This is a much better option because it is very cheap and easy for home build.

More Homemade Refractor Telescope DIY Erecting Prism Binoviewer Focuser here:

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