Hi a bit later than planned….
This is a multi plot of the three lyrid fireballs I captured this year. It is always re-assuring to see near identical spectra with meteors from the same stream.
Micahel, sorry for the delay, I use the 25mm (and occasionally 50mm lens) on my non spectroscopy narrow field of view rig but the spectra are all captured with 12mm f0.8 lenses.
cheers,
Bill.