Back in the 1970's my Dad attended the Nikon School. Unfortunately all of his class materials are long gone, but I came across this interesting flexible plastic ruler in his stuff the other day. I'm not sure what I have, but at one time he had the Nikkor Bellows and I recall that his old 55mm Macro with M2 Ring were used with it. (I kept the lens and ring and it works fine with my D5100, manually set of course.)
Perhaps someone can shed some light on it. Thank you.
Perhaps someone can shed some light on it. Thank you.