There is something wrong with the Canon Feedback links. My antivirus flagged it because it contains a phishing virus and site cannot be reached anyway. I'm not going there.
@johnrmoyerSo you want to know why I want the spectral graph? It's because I do astrophotography and I want to use narrowband filters with my unmodded camera, which is possible, but I need to know the sensitivity for 656nm (H-alpha) and 500nm (OIII) ...
Thank you, but I already saw that and couldn't make head or tail of it. I'm looking for something like these: Click to show Such graphs are easier to find with older more common cameras. Wish Canon had a Gmail so I could contact them directly.
