The Urth 55mm Magnetic Infra-Red (R72) Filter Plus+ is a specialized photo filter for infrared photography. With a thread diameter of 55 mm, it is compatible with lenses of the same size. The magnetic mounting system allows for quick attachment and removal without traditional screw threads, supporting an efficient workflow during photo shoots. Made from optical glass, the filter maintains image quality and provides the specific infrared transmission properties required for this photographic technique. The designation R72 indicates the spectral properties of the filter, which blocks visible light and allows infrared wavelengths around 720 nanometers to pass through. This enables photographers to capture unique infrared effects, including darkened skies, enhanced cloud contrasts, and distinctive representations of vegetation. The design prioritizes durability through robust construction that is resistant to typical handling stresses. Precise manufacturing ensures consistent optical performance across the entire filter surface. The magnetic mounting system includes secure alignment features to maintain correct positioning during use. This filter is suitable for various photographic applications where controlled infrared transmission is required, including landscape, architecture, and creative photography. The 55 mm size corresponds to a common lens filter diameter, and users should check compatibility with their specific equipment. Careful handling is recommended to preserve the optical surfaces, and storage in the provided protective cases is advisable when not in use. The filter's performance characteristics make it a tool for photographers exploring infrared techniques without the need for special camera modifications.