Overhead Projectors

I removed the protection glass from both sides of the projection panel, and then split the ohp’s fresnel and put one side over the lcd. ¡The image is pretty bright!, a lot brighter than my other OHP (Apollo 8800, 250w). The 3M has a triplet lens, so it has GREAT focusing and doesn’t have that bright spot in the middle of the screen that appeared with the Apollo’s simple lens.

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can you make a hologram with a overhead lens?

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