Hey, simple steps to build your own portable polariscope with commerciallty available magnifier lens, thin film, cell phone sceen, polarizer from an old cell phone, and powered USB port. Tryit out and let us know what you think.
https://www.opticsforhire.com/blog/buil ... olariscope
John and Vasili
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- by JohnnyE
- Wed Feb 10, 2021 8:22 pm
- Forum: Gem Identification
- Topic: Poor Man's Polariscope
- Replies: 5
- Views: 2390
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