So in my lab, I am working with fluorescent bacteria, specifically GFPa1 (green fluorescent protein a1) which are excited with around 500nm light and emit around 516 nm. Forgive me if these aren't correct, it isn't essential for this write-up and my notes aren't in front of me. Is there any way to filter out all other light except for the light at the emission frequency from an iPhone/Android camera? I'm not too familiar with the cameras, but recognize that they function using HSV which can correspond to colors we see on the screen. So is it possible to make the camera only recognize light with an HSV corresponding to a specific wavelength (or even a small range of wavelength of light such as +/- 5 nm)? This would be very convenient for detection of the fluorescence, and could do it on the fly. I haven't had too much luck finding stuff elsewhere online, but perhaps there already is an app or something that can do this if it is possible. Any help or knowledge would be fantastic!