Yes I have this lens and use it on a Speedgraphic. That's why I offered advice. And you? I use the blue tack approach, but the guy who runs SRB - who is a long time UK specialist maker of adapters for lenses in both stills photography and motion pictures - assured me he could make an adapter if I wanted one. I take his word for it. The original poster is in France, which means there are no import problems from the UK and clearly speaks English and can ask SRB for himself. That's why I gave him the google look-up.