thanks David,nice to know I'm not going to fry my 480, it is a really handy feature, if you try and do a full shoot when you see the bird coming they are long gone by the time the shutter fired, i have pigeons and sea gulls that sit on the buildings nearby then they all take off together,so by keeping my finger on the trigger all i have to do is release when they launch off. great stuff. 3D tv, i wish. thanks again david.