The Hoya 82 mm W2 Umber Warmth Color Correction Filter is a multi-coated glass filter designed for precise color temperature adjustment in photography. This filter warms ambient light by 200 Kelvin with a +20 Mired shift, imparting a subtle amber tone for natural color correction. It is particularly effective with daylight film (5500 Kelvin) in cooler lighting conditions such as cloudy days, shaded environments, or during sunrise and sunset. The filter helps adjust the white balance of your film and enhances skin tones in portrait photography for warmer, more natural results. Constructed with Hoya Multi-Coat (HMC) technology, this 82 mm filter minimizes reflections, reduces lens flare and ghosting, and offers an average light transmission of over 97%. The multi-coating ensures compatibility with modern multi-coated lenses while maintaining optical clarity and color accuracy. Made from high-quality optical glass, this professional filter delivers reliable performance for photographers seeking precise color control without compromising image quality. Its robust construction and precise craftsmanship ensure secure mounting and consistent results under various shooting conditions.