One of the conditions of making a magnetogram is finding the right spectrum line. Not that easy. So finding the Fe I 6173 A line (which has a g=2,5) was the objective this morning. Comparing with the solarspectrum and Christian Buil's spectrum, I can say that I found it. Next time, I can start making the images for the magnetogram. I'm not 100% sure but the line split is visible.
