Thanks to all for the info. I have ordered the adaptor and look forward to a much more adaptable solution.
I have a Bower adapter on which Imount a Tiffen 58mm UV filter Protector. When I use a Bower/Jessops rubber lenshood I get vignettingalmost certainlybecause of the ring prohectingforward of the lens hood - presumably to take a lens cap. Does anyone know of a rubber lens hood without the extension?