Midwest Optical Systems LP171-95 JAI 4K 25% Transmission M49 Neutral Density

25% Transmission M49 Neutral Density Filters

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25 Red-Orange Longpass M13

Midwest Optical Systems DB735-55 Dual Bandpass Visible + 735nm NIR M55 Dual Bandpass Filters

Midwest Optical Systems LP171-95 JAI 4K 25% Transmission M49 Neutral DensityMidwest Optical Systems LP171 95 Fused Silica Multi Layer Vis A R Coated Protective Window M95 Protective Filters Often referred to as a sharp cut filter, Longpass Filters are specifically designed to pass a broad spectrum of longer wavelength light while blocking shorter wavelengths. Longpass Filters are often used in fluorescence applications to block an excitation light source or to pass multiple emission wavelengths, improving signal to noise