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Lensball in an optical tube

Started Sep 18, 2018 | Discussions thread
ProfHankD
ProfHankD Veteran Member • Posts: 9,147
Re: BIGGER Lensball in an optical tube

petrochemist wrote:

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...

Well, it doesn't really work very well even in a well-designed mount... but it sort-of does work. The PowerShots don't really have enough DoF, but using CHDK they are programmable. I might throw together a little focus stacking script for it -- there are already focus bracketing scripts, but I'd want it to actually do the stacking in camera, not just take the shots at various focus distances.

 ProfHankD's gear list:ProfHankD's gear list
Canon PowerShot SX530 Olympus TG-860 Sony a7R II Canon EOS 5D Mark IV Sony a6500 +32 more
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