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Chlorophyll Vegetation Index CVI = (NIR * Red) / (Green ^ 2)
broad absorptive filter
Gaussian passband to mimic and accommodate the entire output of the most common LED wavelengths and are anti-reflection (AR) coated to limit glare and minimize reflection loss
light from deeper UV excitation sources and deep red and near-IR (NIR) wavelengths
0% transmission across the visible (VIS) spectrum
Neutral Density (ND) Filter - Absorptive 0.01% Transmission, 425-675nm - MidOpt ND400 ND Chlorophyll Vegetation Index CVI =The MidOpt ND400 Neutral Density (ND) Filter has an optical density of 4. 0, or average 0. 01% transmission across the visible (VIS) spectrum. The ND400 has identical male and female threads on either end so it can be stacked with other ND filters to achieve various optical densities. Because the glass substrate is absorbing 99. 9% of the light that passes into the filter, these filters are not recommended for use with lasers or immediately in front
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