It doesn't matter how careful you are while changing a lens. Those specks of dust are so small you can't see them with the naked eye and regardless of how hard you try they will magically appear as real big spots on your shots. It is wise of course not to change a lens during a dust or sand storm though.Thanks Janie. I think I was not always as careful with lens changing as I should have been so I feel that I'm definitely to blame at some point for some of the marks at least - definitely one of those bumbling idiots![]()
