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A longpass filter has low transmission in the shortwave region (stopband) and high transmission in the longwave region (passband).
Longpass filter kits are available in three different options: UV-VIS, VIS, or VIS-NIR. Each kit contains 8 filters in either 12.5mm diameter, 1" diameter, or 2" square. Wooden box with foam lining is included.
Complete filter kits available with 12.5mm diameter, 50.0mm diameter, 1" diameter, or 2" square filters. Each kit contains all 37 Longpass Glass Color Filter types.
Copyright year, Edmund Optics Inc.
18 Woodlands Loop #04-00, Singapore 738100