I have an old Rolleifliw E2 and would like to use a modern flash attachment. I have a Vivitar (283?) which I have used successfully with the Rollei but I had to hold it with my left hand while shooting. In order to be able to steady the camera and hold it with both hands, I would like to procure a good flash bracket that will work with the Vivitar Flash unit and the Rollei. Can anyone suggest a particular model, brand and tell me what kind of price I should expect to pay for such an item?