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Filter polaroid pair in grad. 90 deg.

Stock Code:
1883-060
Unit:
Each
Price:
$83.00 (ex GST)

Description

This pair of Polaroid Filters is mounted inside a rotating scale which can be supported on an optical bench. A pointer indicates around a circular scale and points to 'zero' where the filters are aligned so that transmission of light is at a maximum. The rotation in degrees on either side of zero is easily measured as the filters reduce the transmitted light to zero at 90 degrees. The diameter of the filter at the centre is 50mm.

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