Thanks for the replies. I attempted to contact Richard Ritter and did so by phone to his ansswering machine but don't imagine he wants to pick up the tab for a call to Australia - do you know if he has an email address? Jim, thanks and yes, I'd be very interested in the structure, means and/or materials you used to make up the adapter. I'm assuming a broadening angle in the body of the adapter would allow for size increase in the 7z11 back and also eliminate vignetting. I also assume that the pins on the back that engage the tab holders on the camera would be reproduced on the camera side of the adapter plate. Simple is better and I'm without sophisticated woodworking tools so thanks in advance for your thoughts.