Sunday, 27 September 2015

Homemade Erecting Prism Diagonal for Refractor Telescope DIY Helical Focuser

13:49  Telli k  No comments

Homemade Erecting Prism Diagonal for Refractor Telescope DIY Helical FocuserErecting 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 u...
By: trukmeeilee

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from Instructables: exploring - technology - robots http://ift.tt/1iUVDEA

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