Rainbow Research Optics offers many different optical products, including Optical Filters. Rainbow Research Optics has been leading the way with the best optical filters around. You will find high quality standards and fast delivery on all Rainbow Research Optics products. Whether you are looking for Absorptive Neutral Density Filters or Color Glass Bandpass Filters, we offer many optical filter options. Find more information about all of our products at www.rainbowoptics.com.