The 87-198 is a 25 mm diameter Infrared (IR) Neutral Density Filter, boasting an Optical Density (OD) of 0.9, suitable for a wavelength of 588 nm. This filter is sourced from the reputable vendor, Edmund Optics, and is currently in stock.
This particular filter is a part of the Neutral Density Filter sub-type, designed with a Circular base shape and constructed from Germanium Burnett material. The filter's geometry includes a 25 mm diameter and a 1 mm thickness, contributing to its overall compact structure.
The 87-198 filter is coated with the EDM 12-008 coating on both the front and back surfaces, enhancing its performance and durability. The filter's shape is that of a Thin Lens, ensuring minimal distortion and high-quality optical transmission.
For those in search of a reliable, high-performance Infrared Neutral Density Filter, the 87-198 is an excellent choice. Its specifications and features make it a versatile option for a wide range of applications.