The ezybalance point and shoot greywhite card enables you the freedom of being able to concentrate on setting up your shot to capture the moment without having to spend time worrying about the exposure and colour correction for your lighting conditions the ezybalance greywhite card is a useful double sided pop up 18 greywhite card makes such technical issues simpler and is particularly handy when you are working under the pressure or time constraints of a wedding or fashion show this