With 18 additional models at center wavelengths ranging from 386–648 nm, TECHSPEC® Fluorescence Bandpass Filters suit fluorescence imaging applications. Units feature greater than 93% transmission and greater than OD 6 blocking outside desired passband, less than 3% from edge of bandwidth, to ensure detection of weakest signals. Offered in 12.5, 25, and 50 mm diameters, filters are manufactured with hard sputtered coating on single fused silica substrate and mounted in black anodized ring.