Consisting of proprietary blend of doped glass, WAV-8 NIR Solid-State Wavelength Filter produces series of distinct calibration peaks from 700–3,000 nm. With 12 peaks, spectrophotometer calibration of wavelength scale can be highly fine-tuned. FNIR-Series Filters maintain linearity from 700–3,000 nm, enabling technicians to validate 5 certified calibration points in NIR range. Superband-Series Filters, with span of 10 calibration points, cover UV, VIS, and NIR range from 200–3,000 nm.