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daveevad
3y ago
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It looks to me like he's using a product by WolfVision that markets itself as a Visualizer[1].
[1](
https://wolfvision.com/en/products/vz-8uhd
)
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leephillips
3y ago
Ahh, I guess what I meant to say was that in olden days the optical version of this was called an opaque projector.
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