Further Filter Fun

I was really curious about how the characteristics of my filters differed, so today I built a spectrograph get a better idea.   I had the diffraction grating in hand with the idea of building a spectroscope at some point.  I took some pics of the build which I’ll post at a later date.

Here is an image of a fluorescent bulb spectrum (for the nice emission benchmarks) and how each filter interfered with it.