The Urth Plus+ Magnetic Ethereal 1/4 Black Mist Filter is a 39 mm camera lens accessory designed for professional photographers and videographers seeking cinematic image quality. This optical filter features precision-crafted German SCHOTT B270 optical glass with advanced 20-layer nano-coating technology, ensuring exceptional light transmission while providing robust protection against scratches, water, and oils. The filter's special black mist particles effectively diffuse bright light sources and reduce digital sharpness, creating the soft, atmospheric look characteristic of traditional film photography. The innovative magnetic mounting system allows for quick filter changes without compromising optical alignment, while the ultra-thin Magnalium construction prevents vignetting even with wide-angle lenses. With a diameter of 39 mm and standard threading, this filter maintains full compatibility with corresponding lens sizes. The neutral density effect is precisely calibrated to 1/4 strength, offering subtle light control without overlaying the original image properties. Designed for durability and consistent performance, this filter preserves color accuracy and contrast under various lighting conditions. The multi-layer coating minimizes reflections and lens flares while protecting the optical surface from environmental influences. Suitable for both photography and video applications, this accessory enhances creative control while maintaining the integrity of your camera equipment.