Single Data Image from Custom Spectroheliograph

I did a little bit more research and testing of the custom spectroheliograph I am building yesterday.  This time I actually captured a single frame of data of one spectral line.  Honestly, I can't even remember which line this was...  Hydrogen alpha?  Sodium?  Continuum?  I honestly don't remember and I suppose it does not matter.  I just wanted to make a little more progress in this project.

This image is just one still image of a spectral line captured without the use of a telescope of any sort.  I simply had the spectroheliograph pointed out our living room window.  My purpose was simply to see what a captured image would look like.  For collecting data to compile an actual image of the current sun, I would need to be connected to a telescope and then capture video...  from one end of the spectral line scanning toward and beyond the opposite end of the spectral line.  It would be a completely different process.

One thing I did noticed in this image is that either my focus was off a little or I still need to work on accurately collimating this instrument.  The edges of the frame at the ends of the line are not crisp.  If I remember correctly, this is an indication of missed collimation.  Or, as I said, my focus could have been off slightly.  

The other thing that was strange was that the image I had saved was extremely noisy but the image I saw on my screen when I was capturing the image did not appear nearly as noisy.  The resulting image was severely noisy which was quite a surprise.  So, I need to figure out why I wasn't actually seeing what I had imaged.  There might be some setting or two that I was missing in the software I use.  

Again, the good news is that I made a bit of progress on this project again yesterday.