I have an older Linhof III with wide tele and normal no problems with coating's yet. Are these considered "hard coating's" ? Now I have a rollei 3.5e planar with a coating issue and a 2.8f that's fine. I was to understand modern coatings are very soft and can be wipped off is this true? As for uncoated I run into almost no problems such as a leica 5cm summitar uncoated with haze cleaned up like new.