Hi, I have a question to ask for Nikon lenses. I read that it is dangerous to mount pre-ai lenses to Nikon's new dslrs: like D50-70-(not so new) 3000 ecc. Question: with the normal Nikon to :43: adapter is this true? What I mean is that the F mount should be the same but changes the distance from the end of the lens to the camera's sensor so the adapter should resolve this problem. Is that right or is my brain gome to holiday? If the normal adapter is not the right one which should I use? Because I have some old non-ai lenses I would like to use on my Epl-1.