Product Description
The Hoya SOLAS IRND filters were created using the latest materials and
Japanese manufacturing processes to maintain a neutral color rendition
throughout their density range of 0.3 to 3.0. A factor that a lot of ND filters
do not take into account is the affect of IR (Infrared) light on color. As
digital imaging sensors become more and more sensitive to light they are also
more susceptible to overexposure and more sensitive to infrared light.
To address these two sensor issues Hoya developed the SOLAS line of IRND
filters. First, they come in densities of .3, .6, .9, 1.2, 1.5, 1.8, 2.7 and
3.0, that is 1~6 plus 9 and 10 stops light reduction while maintaining amazingly
neutral color balance. This reduces the amount of light entering the camera
allowing for either very wide apertures or very long shutter speeds being used
in bright lighting conditions.
Normal ND filters often have a transmission spike in the near infrared (A.K.A
High Red) area of the color spectrum that leads to color casting. The Hoya SOLAS
IRND filters are designed to evenly suppress IR across red, near-IR and IR areas
of the spectrum to avoid any spectrum spikes that can add a color cast to the
image.
The combination of IR suppression and exacting color balance through use of the
latest ND materials means the SOLAS series maintains neutral color balance that
is matched in every density throughout range.
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