Sharp Cut Yellow and Red Filters
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** KOPP SHARP CUT YELLOW & RED FILTERS - from Bes Optics, Inc. **
** KOPP SHARP CUT YELLOW & RED FILTERS - from Bes Optics, Inc. **
** KOPP SHARP CUT YELLOW & RED FILTERS - from Bes Optics, Inc. ** ** KOPP SHARP CUT YELLOW & RED FILTERS - from Bes Optics, Inc. **
** KOPP SHARP CUT YELLOW & RED FILTERS - from Bes Optics, Inc. **
** KOPP SHARP CUT YELLOW & RED FILTERS - from Bes Optics, Inc. **

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** KOPP SHARP CUT YELLOW & RED FILTERS - from Bes Optics, Inc. **

Typical shift of spectral transmittance with increasing temperature.  Illustrated for glass 2424 at 5mm thickness. This temperature shift is characteristic of all sharp cut filters, regardless of manufacturer.