Robert R wrote:
I was always taught to use a filter to protect lens. From reading all the posts here it seems the majority feel that it is not needed. Several weeks ago I was photographing my grandson, age 3, and before I could stop him, he came over and planted two very dirty finger prints on my filter. My question is that if those finger prints were on the surface of the lens, would the lens be damaged by cleaning?
Absolutely not. It would not be damaged by a little dirt. Its is also as easy to clean a lens as it is to clean a filter.