Midwest Optical Systems BP550-25.4 Near-IR/UV Block - Visible Bandpass M25.4 – 25.4™ C-Mount Bandpass Filter Bandpass Filters are used in a variety of industries, including machine vision, factory automation, security and surveillance, license plate recognition, medical and life science, agricultural inspection, aerial imaging, motion analysis, photography and cinematography.MidOpt Bandpass Filters are specially designed for industrial imaging — Available in UV, VIS and NIR passbands Achieve optimal contrast Improve system control, repeatability and stability Block interfering wavelengths, eliminating the need for shrouds Increase resolution by reducing chromatic aberration Anti-reflection coated for maximum transmission Hard coated, single substrate fabrication Exceptional surface quality; 40/20 scratch/dig