This filter set is ideal for use with TRITC and other similar fluorophores. When viewing TRITC visually, it has the “reddish” appearance with which many experienced microscopists are familiar. This hard-coated filter set is the best value on the market, delivering high brightness and contrast. Note: Historical limitations in filter technology led to the widespread use of TRITC emission filters that are overly broad and red-shifted, causing the TRITC fluorescence to appear red. This BrightLine Basic filter set delivers that familiar “reddish” appearance. In contrast, Semrock’s highest-performance BrightLine TRITC-B filter set is optimized for the best signal and noise performance, and since the TRITC emission band peaks in the orange, the fluorescence correctly appears orange – not red.