Think megapixel mania is nonsense? DxO Labs begs to differ. Here's a very detailed look at the French lab and the science of camera testing, which I found out about while watching it put the Canon 5D Mark III through its paces. Check the story for some views that fly in the face of the digital photography conventional wisdom.

Also, a photo gallery of DxO Labs' actual lab:

And the Canon 5D Mark III's underwhelming sensor test score of 81:
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