[Al!]

Hi I'm a bit of a noob with TVs and Cameras and was wondering if someone could explain if there is a valid calculation to prove 1080p is roughly only 2 mega pixels or more?

link

[Jon P]

A screen which is 1080P has a resolution of 1920 x 1080 this when multiplied together gives 2,073,600

[Stephen Neal]

Originally Posted by Jon P

A screen which is 1080P has a resolution of 1920 x 1080 this when multiplied together gives 2,073,600

Yep - but don't forget that TV/PC pixels aren't counted in the same way as digital stills camera pixels.

Digital stills cameras usually have one sensor with different pixels sensitive to Red, Green or Blue, and count each R, G and B pixel separately (there are usually 2 G and 1 R and 1 B in each group on a stills camera). TV cameras have three sensors, all 1920x1080 resolution, but usually treat a TV pixel as all three.

You could describe an HDTV RGB image as 1920x1080x3 = 6.22 megapixels if you use the same pixel counting convention as stills cameras.

[GaryB]

Originally Posted by Stephen Neal

You could describe an HDTV RGB image as 1920x1080x3 = 6.22 megapixels if you use the same pixel counting convention as stills cameras.

That's exactly what Sony do on the POS for their TVs. Kind of naughty, but I guess it works.

[Jon P]

Correct if you count sub pixels. A Sony product specialist said that their sets have two green subpixels (im sure they're not alone) as well so in theory you could multiply the 2 million by 4.