Olympus IS/L B-Macro H.Q. Converter and B-28 wide converter.In a good condition.
Can change any lens with 55 mm thread into a macro or a wide angle lens
Look at the pictures, they will tell you more than a thousand words.
that I mostly sell things that are more than 25 to more than a hundred years
things are almost never in pristine condition. If you cannot live with this,