Just going through the many threads in this forum and others, I have noticed that there are many varied opinions about the best lenses. I wish to conduct a survery with this thread. The idea of this, is to nominate the best and worse Contax Zeiss lens that you HAVE USED. Would like to keep it focused on that. Hopefully, this would provide users with more information regarding people's experiences. Please don't put down your views or opinions, just the best and worst.