Hi, I have Manfrotto 7303YB M-Y Tripod with Ball Head tripod.
Is it possible to 'convert' the above tripod so I can install a quick release head? Is it the adaptor I need?
Unfortunately no, the head on the 7303YB is built-in and not intended to be removed. You might find more success with this adapter: http://www.adorama.com/BG3299.html