Thanks Merlin,
This is my first feeble attempt at a quasar.
I hope you can see the faint spectra indicated by the red line.
I had trouble with bright spec from outside each side of the field, the target spectra was just above it. Also interfered by lots of faint background stars. However, in the original I can see absorption lines in the left portion of the spec.
The origional image is from 3x10min through the 4"-darks.
The graph is at 12.45A/Pix from other image scales and the zero image is on the extreem left, no camera balance -raw image.
IRAS 09149-6206 Mag ~13.