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Cross Polarisation

Cross polarisation (Xpol) - by using two polarising filters - one at the light source and one on the camera - spectacular images can be created from clear plastics. The effect is achieved when rotating the camera polariser, which causes 'cross polarisation', and the darkening of the light source polarising filter. The colours seen in the plastic are the result of diffraction of white light into various parts of the spectrum.

Plastic cup (cross polarisation)-1.jpg

Plastic cup

Set square (cross polarisation).jpg

Set square

Tape cassette (cross polarisation)-2.jpg

Tape cassette

When the technique is used with glass, rotation of the camera filter will produce a lightning and darkening of the light source and can be used to create extremes of contrast - high and low key.

Coca-Cola - cross polarisation (glass)2.

Glass Coca Cola bottle demonstrating the Xpro hi & low key possibilities

Marbles - Cross Polarisation (Glass)-3.j

Glass marbles

Galileo thermometer - Cross Polarisation

Galileo thermometer

Knives and forks - (cross polarisation)-

Plastic knives & forks

CD (cross polarisation).jpg


Mathematics (cross polarisation).jpg

Mathematics set

Plastic cup (cross polarisation)-2.jpg

Plastic cup - hi key

Tape cassette (cross polarisation).jpg

Tape cassette

Heart - Cross Polarisation (Glass).jpg

Heart of glass

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