I just found out they call this lens the CanonBall. And it surely is. The thing is HEAVY, short and stout. It is a piece of light sucking engineering marvel. The pictures that come out of it are nothing like you have ever seen. Sharp where focused, silky smooth bokeh and beautiful colors. The only drawback is that it doesn’t fit in any of my camera bags! I have to constantly devise some form of carrying it.
If you are looking for the ultimate portrait lens or low light telephoto… this is it.