Schneider 4x5.65" RHOdium Full Spectrum ND FSND Filter 2.1

Professional Neutrality for High-Resolution Cinematography

The Schneider-Kreuznach RHOdium Full Spectrum Neutral Density (FSND) 2.1 filter is engineered to meet the rigorous demands of 4K, 6K, and 8K digital sensors. As modern imaging technology evolves, the need for precise light control becomes critical. The RHOdium series addresses subtle IR leakage in the far-red and near-infrared spectrums, ensuring your colors remain true regardless of the lighting conditions.

Advanced Lamination and Optical Precision

Unlike standard filters with surface coatings, the RHOdium FSND features an extremely thin neutral density interlayer laminated between two sheets of crystal-clear water-white glass. This encapsulation protects the coating from abrasions and environmental wear, maintaining optical integrity over years of professional use. The filters are manufactured to industry-leading flatness and parallelism specifications to resolve the finest details in high-resolution workflows.

Lab-Tested Color Accuracy

Schneider-Kreuznach utilizes a tristimulus scan to verify neutrality. This advanced colorimetric algorithm compares filter samples to perfectly neutral light, resulting in unprecedented accuracy. The RHOdium 2.1 provides 7 stops of light reduction with a perfectly even response across the visible spectrum, making it an essential tool for cinematographers seeking consistent, predictable results.