Schneider 6.6x6.6" RHOdium Full Spectrum ND FSND Filter 0.9

Professional Neutrality for High-Resolution Cinematography

The Schneider-Kreuznach RHOdium Full Spectrum Neutral Density (FSND) 0.9 filter is a premium optical solution designed for the rigorous demands of 4K, 6K, and 8K digital sensors. As modern imaging sensors evolve, they remain susceptible 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 ultra-violet through the entire visible spectrum.

Advanced Lamination and Durability

Unlike traditional filters with surface coatings, Schneider-Kreuznach utilizes an extremely thin neutral density interlayer. This layer is laminated between two sheets of crystal-clear water-white glass. By encapsulating the coating, it is protected from scratches and abrasions, ensuring long-term performance in harsh production environments. The filters are manufactured to industry-leading flatness and parallelism standards to maintain sharpness at any focal length.

Scientifically Verified Color Accuracy

RHOdium filters are the first to be validated using a lab-tested tristimulus scan. This colorimetric algorithm compares the filter against perfectly neutral light, surpassing traditional measurement methods. This ensures that your 0.9 ND (3-stop) reduction remains color-constant, saving valuable time in post-production color grading.