64-705 50 mm Dia. Traditional Coated OD 2.0 Longpass Filter; t=5mm 800nm

The 64-705 is a Longpass Filter, sourced from Edmund Optics, with a diameter of 50 mm and a thickness of 5 mm. This filter is designed for use in optical systems where long-pass filtering is required, typically for applications in the near-infrared region of the spectrum.

The filter's primary function is to block light with wavelengths shorter than 800 nm, while allowing light with longer wavelengths to pass through. This is achieved through a precise coating process, which results in the "Longpass" characteristic. The coating on both the front and back surfaces of the filter is EDM 49-032, a type of coating known for its durability and performance in long-pass applications.

The filter is shaped as a Thin Lens, which is a type of optical element designed to focus light. This shape, combined with the filter's other properties, makes it suitable for use in a wide range of optical systems, including cameras, spectrometers, and other instruments that require long-pass filtering.

The filter is currently in stock and can be purchased directly from the vendor through the provided web link. With its high-quality construction, precise coating, and versatile shape, the 64-705 is an excellent choice for any application that requires long-pass filtering in the near-infrared region.