The Hoya 62mm W12 Umber color conversion filter made from multi-coated glass is a precise optical accessory for adjusting color temperature in photography and videography. It produces a warming effect of 2200 Kelvin, corresponding to a Mired shift of +120, and gives images a rich amber tone to correct color balance. This filter is particularly effective when used with tungsten-balanced film such as Cinestill 800T, helping to neutralize blue casts under daylight or with 5500 Kelvin light sources like flash units and studio lighting, ensuring natural and accurate color reproduction. Made from high-quality glass with Hoya Multi-Coat (HMC) technology, the filter reduces reflections, lens flares, and ghosting while maintaining an average light transmission of over 97 percent for sharper, clearer images. The 62mm thread ensures compatibility with a wide range of lenses, and the robust construction supports reliable performance under various shooting conditions. Ideal for photographers seeking enhanced control over tones, this filter helps achieve consistent results without distortion, making it a valuable tool for both indoor and outdoor applications.