>>13591401the difference between camera and a spectrometer is that regular camera measures 3 different wavelenghts - red, green, blue
whereas spectrometer measures the entire spectral band, say from 300nm to 1000nm with 1nm resolution, it can be 1px spot or it can show an entire image.
There are multispectral cameras that are spectrometers, but not all multispectral cameras are spectrometers. Some just add an extra chip that measures IR at one given wavelenght for example.
The strongest laser on Persy turns a small spot to plasma and you can measure color of the fireball (you probably did that experiment at school - copper turns flame blue, boron green, etc.), that's not very precise, but it can also ablate to top layer and lets you measure directly underneath the rogg surface using other instruments.
It also has a less powerful laser - sample will only glow back in IR without burning, which can tell you about some basic chemical composition of molecules its made of.
there's also X-ray spectrometer - those are great at measuring metals of all kinds (the plasma balls typically aren't as accurate as XRF).
Persy doesn't have a mass spectrometer, those are rather heavy instruments
