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Lensball in an optical tube

Started Sep 18, 2018 | Discussions thread
petrochemist Veteran Member • Posts: 3,619
Re: BIGGER Lensball in an optical tube

I have 20mm & 80mm crystal balls but have never tried putting them in a tube. Reflections on the surface have always limited my results so I can definitely see the advantage of that!

I've been meaning to try something bigger than the 80mm with the aid of a fishbowl, but its only one of a very long list of projects...

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