shooting at less MP for increased resolution

Started Dec 24, 2008 | Discussions thread
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imageswest Regular Member • Posts: 359
Nomination for "Clueless Post of the Day"... (n/t)

franicma wrote:

"Does anyone actually believe that taking a 21MP picture and throwing
away one-half the information is going to make it better?"

You miss the point. You don't have 21MP of information in the 5DII -
you have much less. You have 21 million pixels -give or take- but
only 10MP of green, 5MP of red and 5MP of blue. Luminosity is not
21MP either - it is 2/3rds of that interpolated.

What is worse, is that it still demands tight resolution from the
lens to capture a fraction of it.

The answer is yes, you need to downsample to get actual data as you
would scanning film.

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