Midwest Optical Systems LP171-40.5 1/2" Lens Excellent low-light performance (2

Excellent low-light performance (2

Midwest Optical Systems AC900-34 Acrylic Short-Wave Infrared Longpass M34 Acrylic Filters

Midwest Optical Systems AC370-40

Midwest Optical Systems AC385-72 Hard Coated Cell Cast Acrylic Protective Window M72 Acrylic Filters

5 Reflective 1% Transmission M25

Midwest Optical Systems LP171-40.5 1/2" Lens Excellent low-light performance (2Midwest Optical Systems LP171 40. 5 Fused Silica Multi Layer Vis A R Coated Protective Window M40. 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