It comes with a strap was included, so the disc you can easily around your neck and hold before each photo just before the lens. In my cameras that works within a few seconds.
Did I forget the disc again, I am angry, because I know that my photos look just great with the white balance. It must be said that I am not a fan of post production. I would like to set in advance all the way I like it and then shoot the picture.
In my eyes this disc highlights the quality of the photos and I find that it is their money well worth.