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Review Summary
2016-11-11T07:25:11
description implies none of visible spectrum gets through. I wanted to use it to block small visible red glow coming from infrared LEDs. This filter failed to block that part of the visible spectrum.
KYLER A.
3x3" / 7.62x7.62 cm
Polyester

Lee Filters 87-P3 filter is for black and white infrared film when you only want to transmit the infrared spectrum and none of the visible spectrum. Filter factor is determined by the film sensitivity.