Midwest Optical Systems LP170-77 1/2" Varifocal Lens Midwest Optical Systems DB475/850-43 Dual

Midwest Optical Systems DB475/850-43 Dual Bandpass Blue + 850 NIR M43 Dual Bandpass Filters

Midwest Optical Systems BP850-37

Midwest Optical Systems LP900-95 Near-IR Longpass M95 Longpass Filters

Midwest Optical Systems BP505-39 Cyan Bandpass M39 Bandpass Filters

Midwest Optical Systems LP515-105 Yellow-Orange Longpass M105 Longpass Filters

Midwest Optical Systems LP170-77 1/2" Varifocal Lens Midwest Optical Systems DB475/850-43 DualMidwest Optical Systems LP170 77 Fused Silica Protective Window M77 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