Midwest Optical Systems LP171-25.5 6mm Lens 25% Transmission M35

25% Transmission M35

Midwest Optical Systems LP330-58 Protective Window M58 Protective Filters

5 Short-Wave Infrared Bandpass M37

Midwest Optical Systems BN630-34 Narrow Light Red Bandpass M34 Narrow Bandpass Filters

Midwest Optical Systems Bi660-52 Dark Red Interference Bandpass M52 Bandpass Interference Filters

Midwest Optical Systems LP171-25.5 6mm Lens 25% Transmission M35Midwest Optical Systems LP171 25. 5 Fused Silica Multi Layer Vis A R Coated Protective Window M25. 5 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