'Effective megapixels'

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12 Jun 2003
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2,033
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Either Tonbridge or Biggin Hill
My boss was just telling me about his Fuji Finepix, which he says is 2.1MP but according to the packaging is '4.2 effective MP'.

I seem to recall that this 'effective' figure is a clever trick by the marketing people to twist the truth. A bit like saying this car will do 90mpg, but only downhill with your foot on the clutch.

Can anyone enlighten us on why it would be 'effectively 4.2MP'? :)
 
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