EEVblog 1458 - Microscope Polarising MAGIC!

Can't see those pesky laser etched part numbers on chips? Dave demonstrates what's happening with the microscope polarising filter lenses on Twitter that's blowing people's minds. Does it actually work?
And other tricks of the trade.

DIY Light box for PCB photography: https://www.youtube.com/watch?v=6ZH2KeplSrs
https://twitter.com/azonenberg/status/1494061604161220615
https://twitter.com/ghidraninja/status/1494343655053832203
Aputure Amaran AL-M9 LED light https://amzn.to/3H0O5KW
Leica microscope brochure: https://downloads.leica-microsystems.com/Leica%20LED3000%20RL/Brochures/Leica%20LED3000-5000_Brochure_EN.pdf

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