Mike Dunn (or his company) does own it, perhaps if he makes SELEM we can get him to bring it.
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Swami that was worth the price of admission. Yeas that technique is AWE inspiring. At airport typing on phone. Steve o
I vote fish-tank / bowl + food-grade mineral-oil.. or water / tiny-amount of particulate... :p
j
It definitely IS NOT a pilsner glass. I tried that last night.
Maybe a glass tube where you project down the length... the center stays the same but it effects the outside of pattern. The edges remind me of a half cylindrical lens effect. Maybe a lens with a hold drilled in the middle.