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Term - Crossed polarization

Crossed polarization SWPP Photographic Glossary

Monday 10th May 2021  




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Crossed polarization

System of using two polarizing filters, one over the light source and one between the subject and the lens. With certain materials crossed polarization causes bi refringent effects which are exhibited as coloured bands. Used in investigations of stress areas in engineering and architectural models.



 

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06/11/2019 11:36:00