Discover the precision and control offered by the Red Diamond Reverse Graduated ND 150x170mm Filter, a high-quality optical accessory designed for the discerning photographer. This 1.2 density (4-stops) filter is a versatile tool for managing light in your compositions, particularly in high-contrast environments where the sky is significantly brighter than the landscape.Crafted from premium optical glass, this filter boasts a Nanopro multi-coating that significantly reduces reflections and glare, enhancing image clarity and color fidelity. The innovative coating also provides a robust defense against scratches, water, oil, and fingerprints, making the filter exceptionally easy to maintain.The Red Diamond Reverse Graduated ND Filter is renowned for its durability, with a construction that is highly resistant to shocks and less prone to glass breakage. This resilience is complemented by an R5 rounded edge design, ensuring smooth and secure placement within compatible 150 Series filter holders from Haida, as well as other 150x150mm holders from leading brands like Lee, Nisi, Cokin, and Hitech.With its effective reverse gradient design, the filter transitions from its maximum density at the center and gradually decreases toward the top edge. This innovative feature allows for balanced exposures during sunrise or sunset when the brightest part of the sky is near the horizon, providing a natural and harmonious blend between the illuminated and shadowed areas