2-Inch Telescope Eyepiece Extension Tube
thingiverse
I modified an existing 2-Inch Telescope Eyepiece Extension Tube to accommodate my needs. I drilled a couple of #32 holes and utilized some 6-32 thumbscrews that I had from one of my old PC cases to secure the adapter in place. This extension tube provides additional focuser "back travel," a feature often required for short-range terrestrial viewing through a telescope, or for astrophotographic applications. It adds 2 inches of extension, fits into 2-inch telescope focusers, and accepts 2-inch eyepieces or accessories.
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