Filters Optical colour glass filters and Dichroic filters for heat and light control covering from 200nm to 1000nm plus.

NEUTRAL DENSITY FILTERS - ABSORPTIVE Diameters 12.50mm & 25mm Squares 50mm2 Optical density 0.10 to 4.00 Transmission 0.01% to 79% NEUTRAL DENSITY FILTERS - REFLECTIVE Diameters 12.50mm & 25mm Squares 50mm2 Optical density 0.03 to 2.00 Transmission 1% to 93% SCHOTT SHORTPASS FILTERS Diameters 12.50mm & 25mm Squares 50mm2 SCHOTT BANDPASS FILTERS Diameters 12.50mm & 25mm Squares 50mm2 SCHOTT LONGPASS FILTERS Diameters 12.50mm & 25mm Squares 50mm2 PHOTOPIC FILTERS Diameters 12.50mm, 25mm & 50mm MOUNTED IR FILTERS Standard screw mounts 49mm, 52mm & 58mm HOYA OPTICAL FILTERS Various range of glass filters 12.50mm dia CALIBRATION FILTERS - HOLMIUM Calibration multiband filters – circular & rectangle CALIBRATION - FILTERS DIDYMIUM Calibration multiband filters – circular & rectangle UV BLOCKING FILTERS Diameter 25mm Squares 50mm2 IR CUT OFF FILTERS Diameter 25mm Squares 50mm2 COLD MIRRORS O Degree Diameter 25mm Squares 50mm2 HOT MIRRORS O Degree Diameter 25mm Squares 50mm2 HEAT ABSORBING FILTERS Toughened filters diameter 25mm Squares 50mm2 DICHROIC COLOUR FILTERS 6 Colours - Diameter 25mm Squares 50mm2