Video duration: 108 seconds
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Demonstration of an OPTI 'Crystal C' lighting effect wheel running at 1/2RPM together with a Polarising spinner wheel running at 20RPM in a Solar 250 projector. This incredible effect is sadly long discontinued and now very rare. Probably the finest OPTI effect ever created. Occasionally we offer used polarising effects similar to this for sale at www.optifanatics.com
Video duration: 398 seconds
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Full guide at: http://www.dslrtips. com/workshops/How_to _use_polarizing_filt ers/reduce_haze_deep _blue_sky.shtml - How to use polarizing filters to reduce haze and deepen blue skies, by Gordon Laing, Editor of http://www.dslrtips. com
polarimeter
1. an instrument used to measure the rotation of the plane of polarized light as it passes through a sample of an optically active compound
A simple demonstration of birefringence using polarisers and a beaker full of corn syrup!
For more information on this and other physics and astronomy demos, please visit us at:
http://www.ap.smu .ca/demonstrations