RHOdium FSND Series

The Schneider-Kreuznach RHOdium Full Spectrum Neutral Density (FSND) filters are a high-end ND filter line made specifically for the critical color standards of 4K, 6K, and 8K resolution cameras.

Major advancements in 4K, 6K and 8K digital sensors have resulted in fewer issues with IR leakage compared to digital cameras of the past. However, these imaging sensors can still be subject to IR leakage within the far-red component of the visible spectrum, as well as the near IR.

Schneider-Kreuznach RHOdium FSND filters answers the cinematographer’s call for a truly neutral ND that attenuates light evenly from the near ultra-violet (important for film) through the full visible spectrum and into the near infra-red.  Our filters are manufactured to finer flatness/parallelism specifications than ever before. These new filters help resolve even the finest detail.

Schneider-Kreuznach has engineered an extremely thin neutral density interlayer laminated between two sheets of crystal-clear water-white glass. Additionally the coating is kept safe from abrasions by being encapsulated within the glass, rather than on the surface. 

RHOdiums are the first filters to undergo a lab-tested tristimulus scan, a more critical color 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. The result is unprecedented accuracy.

RHOdium
Full Spectrum Neutral Density


  • Even response from the UV through the visible color spectrum and into the IR
  • ND coating layer is protectively laminated within the glass
  • Range of 10 stops from ND 0.3 to 3.0
  • Colorimetric algorithm verifies accurate neutrality

Vectorscope at 5x magnification


 

Vectorscope at 5x magnification RHOdium FSND 0.3

Vectorscope at 5x magnification RHOdium FSND 3.0

 

Bill Bennett, ASC talks about our RHOdium FSND filters


 

RHOdium Full Spectrum Neutral Density filter test


 

technical Specifications

Strengths0.3 (1 stop), 0.6 (2 stops), 0.9 (3 stops), 1.2 (4 stops),
1.5 (5 stops), 1.8 (6 stops), 2.1 (7 stops), 2.4 (8 stops),
2.7 (9 stops), 3.0 (10 stops)
Sizes4“ x 5.65“, 6.6“ x 6.6“
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HEADQUARTERS - Germany

Jos. Schneider Optische Werke GmbH
Ringstraße 132
55543 Bad Kreuznach
+49 (0) 671 601 205
cs@schneiderkreuznach.com

 

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