Midwest Optical Systems LP171-52 Forge the lenses are sealed with

the lenses are sealed with multiple O-rings

Midwest Optical Systems AC915-43 Acrylic Short-Wave A/R Coated Infrared Longpass M43 Acrylic Filters

Midwest Optical Systems PR120-67 Ultra High Contrast Linear Polarizer M67 Polarizing Filters

Midwest Optical Systems LP645-105 Dark Red Longpass M105 Longpass Filters

6 MP CMOS color sensor

Midwest Optical Systems LP171-52 Forge the lenses are sealed withMidwest Optical Systems LP171 52 Fused Silica Multi Layer Vis A R Coated Protective Window M52 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