Midwest Optical Systems LP550-105 50mm Lens Midwest Optical Systems ND030-58 Absorptive

Midwest Optical Systems ND030-58 Absorptive 50% Transmission M58 Neutral Density Filters

f/4 Ci Series Fixed Focal Length Lens         86-609

Midwest Optical Systems Bi525-35

Midwest Optical Systems LP470-30

Edmund Optics 6

Midwest Optical Systems LP550-105 50mm Lens Midwest Optical Systems ND030-58 AbsorptiveMidwest Optical Systems LP550 105 Orange Longpass M105 Longpass 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 commonly used