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Available up to transmission
1% i.e.OD2
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Neutral Density:
+ 10% of density
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Surface accuracy
¼ wave
Neutral Density Filters Flat spectral transmission between 400-700nm, Can be stacked to create intermediate optical densities. OD of stack is sum of OD of each filter. Transmissionreflection ratio varies with density. Place mirrored surface towards light source