I appreciate all the help I've been getting here; thanks for your patience in leading me out of the wilderness and into the promised land. I have another question to present.
I have always used high quality clear or UV filters on my Canon and Sony lenses for protection. I've read all the debates, and understand that many think it's foolish to add one more glass element between subject and sensor.
On the one hand, these are some of the finest lenses on earth and it's a shame to do anything that could cause image degradation. On the other hand, these are some of the most expensive lenses on earth, and I would have apoplexy if I damaged a front element.
Do you use clear filters to protect the lens?