Midwest Optical Systems AC685-13.25 4mm Lens P/N 21-107804) Ruggedized These lenses

P/N 21-107804) Ruggedized These lenses are designed for use at long working distances--from ~2m out to infinity

Midwest Optical Systems ND300-25

C Series lenses are manufactured to high tolerances

Midwest Optical Systems ND060-25

Midwest Optical Systems PC052-25

Midwest Optical Systems AC685-13.25 4mm Lens P/N 21-107804) Ruggedized These lensesMidwest Optical Systems AC685 13. 25 Acrylic Near IR Longpass M13. 25 Acrylic Filters Acrylic Longpass Filters are a durable, lightweight and economical solution for inspection windows. They can protect a lens in environments where broken glass might pose a problem. Acrylic Longpass Filters are frequently used for lens protection and economical enclosure windows, as well as over light sources to control the wavelength emission of broad spectrum light