Hello Carol -
You wrote:
CarolB wrote in post #2551013
Here is a picture I just took in Auto mode. Is that what you mean by green box? The background is white paper.
That picture is exactly as the camera is programmed to "see" it...a light form of gray. Here's the deal: cameras typically look at a scene and try to expose for a "neutral" gray of 18%...that is why one uses a gray card to set exposure. You are shooting an almost all white scene so the camera will try to set it as gray - it doesn't know there isn't a large portion of dark like in your second ("good") image.
Setting the white balance is not the first step (it is the second step). Try setting the exposure compensation first by setting it to +2/3 or +1 stop. You could also try setting the camera to scenic mode, SNOW.
CarolB wrote in post #2551013
Here is an earlier picture before I started messing with custom options.
Looks fine as there is a fair amount of dark along with the white so the camera compensates properly.
You could try making a Custom setting for situations like the first "problem" image.
Regards,
GEWB