Camera sensor size: Why does it matter and exactly how big are they?

The megapixel myth has treated camera manufacturers well over the years, those ever increasing, and often meaningless, numbers have sold millions of cameras. But consumers are getting wise to it. We've all seen dodgy images from high megapixel cameras and know that after a point, megapixels don't matter for most people – a 16 MP compact isn't ever going to be as good as a 12 MP Full Frame DSLR. What does matter is sensor size!

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Camera sensor size: Why does it matter and exactly how big are they?

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