Midwest Optical Systems LP190-49 AIDA Midwest Optical Systems ND030-77 Absorptive

Midwest Optical Systems ND030-77 Absorptive 50% Transmission M77 Neutral Density Filters

Midwest Optical Systems BP880-49 Near-IR Bandpass M49 Bandpass Filter

5 Acrylic Near-IR Longpass M40

Midwest Optical Systems LP330-39 Protective Window M39 Protective Filters

Midwest Optical Systems AC400-58 Acrylic Oleophobic VIS A/R Coated UV-Block Protective Window M58 Acrylic Filters

Midwest Optical Systems LP190-49 AIDA Midwest Optical Systems ND030-77 AbsorptiveMidwest Optical Systems LP190 49 Sapphire Protective Window M49 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 ratio. Longpass Filters are also