The Kodak Safelight Filter 5 1/2" OC is a high-quality, orange filter designed for use in darkroom settings. Made by the well-known brand Kodak in the United States, this filter allows for safe illumination during developing and printing processes. With a 5 1/2" outer circumference, this filter is compatible with a range of camera and light setups, making it a reliable accessory for film photographers looking to enhance their darkroom experience.