Can a FF camera be damaged by using an APS-C lens (crop lens)? I'm using the Sigma 17-50 with the 5D, I know it's not made for FF cameras but I really love the effect it produces. I don't want to damage the cuircuit, mirror or anything that could happen.
All Sigma lenses, whether designed for crop sensor or not, are fitted with an EF mount
So no chance of hitting the mirror