49-028 12.5 mm Dia. Traditional Coated OD 2.0 Longpass Filter; t=1.5mm 600nm

The 49-028 is a Longpass Filter, a type of optical filter that transmits wavelengths longer than a specified value, while blocking shorter wavelengths. This particular model has a diameter of 12.5 mm and a thickness of 1.5 mm, making it suitable for a wide range of optical applications.

The filter is manufactured by Edmund Optics, a leading supplier of optical components, and is identified by the catalog number 49-028. It is made from UVFS Mal-1965, a material specifically designed for optical applications. The filter's cut-on wavelength is 600 nm, meaning it begins to transmit light at this wavelength and beyond.

The 49-028 features a traditional coating on both the front and back surfaces. This coating enhances the filter's performance by reducing reflection and increasing transmission. The filter's shape is described as a Thin Lens, indicating its suitability for use in lens systems.

According to the vendor's website, the 49-028 is currently in stock, ensuring quick delivery for those who need it. The filter's detailed specifications and the vendor's reputation make it a reliable choice for various optical projects.