Bi615 Amber narrowband interference filters is often used in conjunction with 615nm LED and other similar illumination. It can also be used to image fluorescence emissions such as with some AlphaLISA immunoassays and some lanthanide elements in glass. One particularly popular fluorophore that emits at 615nm is Texas Red, which is commonly used in molecular biology techniques like quantitative RT-PCR and cellular assays. Bi615 can also find use in certain aerial and land-based surveying applications when monitoring plant health.