So it does ! I need to recheck this then. (I was shown how to set it up this way at OHP workshop back in 2006.) The photos in the manual are rather confusing as they appear to show the spectra running vertically, displaced to the left. It also looks like the manual (on line at least) is well overdue for an update as it still shows the original kit built instrument with the adjustable slit and the old guider and calibration lamp setup.