Hoya L39 (390nm) Longpass Filter is an optical material designed to transmit light above a specific wavelength while blocking shorter wavelengths.
It is made from specialty glass with precise spectral properties. The L39 filter is specifically engineered to allow the transmission of light with a wavelength longer than 390nm, while effectively blocking shorter wavelengths. This makes it suitable for applications such as ultraviolet (UV) photography, fluorescence imaging, and scientific research where the selective transmission of longer wavelengths is desired. The Hoya L39 Longpass Filter offers high transmission in the desired wavelength range, enabling enhanced contrast and improved image quality in various optical setups.
View all our Hoya and Schott Colour Glass Filters products.