Product Name BP470nm Narrow Bandpass Filter Center Wavelength: 470nm Bandwidth: 20nm (±3nm) Optical Density: ≥OD5 Center Transmission: >95% Blocking Range: 200nm–1100nm Available Sizes M25.5, M27, M30.5*0.5mm and other custom sizes Features 1. High transmittance at central wavelength, excellent out-of-band suppression 2. Hard coating, stable optical performance 3. Interference bandpass design, low stray light Applications Astronomy photography, biochemical analysis, medical detection, laser spectral separation, laser ranging, machine vision, optical experiment. ⚠️ Notes 1. Avoid scratches, heavy impact and high humidity storage. 2. Clean surface only with professional lens tissue. 3. Custom wavelength, bandwidth and dimensions are available upon request.