Does anyone else hate it when they count before taking a picture?

OK, having troubles taking consistent pictures of my registry coins. I am able to get a great white (NGC) background in one picture but with the same elements the next pic comes out brown. The coins show up nice, but it's a horrible presentation. I use a finepix S1000 (old). Is it me or could the camera simply be wearing out? Come to think of it, I've never had luck with this camera regardless of what the subject is.

I've read a few articles, with little help.

Any suggestions?

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