Schneider 4x5.65" RHOdium FSND 2.7 Filter, 9 Stop

Where precision and quality meet, the Schneider RHOdium Full Spectrum Neutral Density (FSND) filters stand out. These high-end ND filters are meticulously designed to meet the critical color standards of advanced 4K, 6K, and 8K resolution cameras. As digital sensor technology has advanced, issues with IR leakage have significantly decreased. However, these high-resolution sensors can still experience IR leakage within the far-red component of the visible spectrum and the near IR. This is where Schneider's RHOdium FSND filters come into play, effectively controlling the IR within the full visible spectrum and into the near infra-red.These filters are manufactured to the finest flatness/parallelism specifications, ensuring they help resolve even the finest detail in your images. Schneider's innovative engineering has led to the creation of an ultra-thin neutral density interlayer, sandwiched between two sheets of crystal-clear Schott water-white glass. This design results in superior transmitted wavefront flatness/parallelism, while also protecting the coating from abrasions by encapsulating it between the glass layers. This makes the RHOdium FSND filters robust enough to withstand the rigors of the rental market.RHOdium FSND filters are the first to undergo a lab-tested tristimulus scan, a more stringent color measurement method than previously used. This process verifies neutrality by utilizing a colorimetric algorithm that compares samples to perfectly neutral light, resulting in unprecedented accuracy.Whether you're a cinematographer or photographer working with the latest digital image capture technology, or even with film, the RHOdium FSND filters are perfectly suited to meet all your Neutral Density needs by keeping the visible spectrum completely under control. In the realm of physics, the Greek letter rho symbolizes the unit of Optical Density, and Rhodium is part of the "Platinum Group of Metals" on the periodic table of the elements, reflecting the high-quality and precision of these filters.