Schneider-Kreuznach RHOdium FSND Filters

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Schneider-Kreuznach have announced the release of new RHOdium Full Spectrum Neutral Density (FSND) filters, a lineup of high-end neutral density filters that are claimed to exceed the critical colour standards of the newest 4K, 6K, and 8K resolution cameras. The filters are available in a full range of densities: 0.3, 0.6, 0.9, 1.2, 1.5, 1.8, 2.1, 2.4, 2.7 and 3.0. They are available in 6×6 and 4×5.65 sizes.

The new RHOdium filters have been made with an extremely thin neutral density interlayer sandwiched between two sheets of crystal-clear SCHOTT water-white glass and are said to be manufactured to finer flatness/parallelism specifications than ever before. Schneider-Kreuznach claim that this manufacturing technique helps the filters to resolve even the finest detail and produce images free from distortion or abnormalities. By encapsulating the interlayer between the glass, rather than on the surface, the filters should be better protected from abrasions and scratches during field use.

Schneider-Kreuznach say that the RHOdiums are the first filters to undergo tristimulus scanning, which is a more critical colour measurement than methods previously used to measure filter quality. This method verifies neutrality by utilizing a colorimetric algorithm that compares samples to perfectly neutral light.

According to the company, during real world testing on popular high-end cameras, the RHOdiums have proven to be free of infrared light leakage that has plagued many previous ND filters.

RHOdium FSND Filters will be available in April, 2017. MSRP for the 4”x5.65” size starts at $449US while 6”x6” start at $699US.

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