Gee Vincent, now your getting picky,
well, It all depends on what you are going to do with your camera, If you mainly use it for imaging then you have to do nothing.
If you wish to take happy snaps then depending on the lighting it is probably better to take one CWB of a white page or similar, and use that as your happy snap CWB, then all will be well.
If however you want to be more inventive and go into dark places and lets say floresent or different type of lighting it would be better to take a CWB of that perticular situation, each time and then just use that CWB for that one off shoot.
Leon
