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The GOYO GM12HR30528MCN is part of the GM12 series
Chlorophyll Vegetation Index CVI = (NIR * Red) / (Green ^ 2)
light from deeper UV excitation sources and deep red and near-IR (NIR) wavelengths
making this filter extremely heat-resistant
Neutral Density (ND) Filter - Absorptive 0.01% Transmission, 425-675nm - MidOpt ND400 ND The GOYO GM12HR30528MCN is partThe 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