Optical filters selectively transmit light in a particular range of wavelengths. When designed to pass short wavelengths only, they are referred to as short-pass filters. Short-pass filters are widely used in optical instruments for applications such as fluorescence microscopy and Raman spectroscopy. They may also be used in operations like stage lighting and entertainment. Short-pass filters are commonly paired with long-pass filters to create custom band-pass filtering. This allows for the transmission of a specific wavelength range that is tailored for customer requirements.