Schneider 4x5.65" RHOdium Full Spectrum ND FSND Filter 0.3

Professional Neutrality for High-Resolution Cinematography

The Schneider-Kreuznach RHOdium Full Spectrum Neutral Density (FSND) 0.3 filter is engineered to meet the rigorous demands of 4K, 6K, and 8K digital sensors. As modern imaging technology evolves, sensors have become increasingly sensitive to IR leakage in the far-red and near-infrared spectrums. The RHOdium series addresses this by providing a truly neutral attenuation that remains consistent from the near-ultraviolet through the entire visible spectrum and into the near-infrared.

Advanced Laminated Construction

Unlike traditional filters with surface coatings, Schneider-Kreuznach utilizes an extremely thin neutral density interlayer laminated between two sheets of crystal-clear water-white glass. This design protects the delicate coating from abrasions and environmental wear, ensuring long-term performance in demanding production environments. The filters are manufactured to strict flatness and parallelism specifications to resolve the finest details without optical distortion.

Lab-Verified Color Accuracy

RHOdium filters are the first to be validated using a lab-tested tristimulus scan. This critical color measurement utilizes a colorimetric algorithm to compare filter samples against perfectly neutral light. This process guarantees unprecedented accuracy and consistency across the entire density range, allowing cinematographers to maintain a consistent look when switching between different ND strengths.