Pretty much everybody knows that a pixel is a small dot and that having so many of them across by so many up gives you a picture. If it stopped there - measuring in pixels - we would all know where we stood. But call it 1080N or 1080P and what does that mean?

From the chart below you can quickly work out if you're being diddled out of pixels. Particularly of interest are the "lite" versions of the resolution standards - where just a letter difference can mean essentially half the resolution you thought you were getting.

Take 2MP Lite. You'd think thats 2MP right? Or at least 2MP packaged up and compressed. But its not... its just over 1MP in true resolution. 

The same thing with 4MP Lite. You guessed it! In reality you only get the equivalent of a true 2MP picture.