10-05-2011, 09:49 AM
[quote name='Brightcolours' timestamp='1317806361' post='12105']
Lets suppose you need 4 pixels to bin into 1 (probably not true, as 4 pixels have 2 green, 1 blue, one red....). Then you end up with a 9mp image. If you want to have more successful binning with red and blue also... you would need 4 blue, and red, I guess?
That then needs 4 by 4 pixels? Which gives 4 red, 4 blue and 8 green ones. 36mp / 4 / 4 = 2.26 mp?
[/quote]
If I remember correctly from the info in Fuji site, I guess the color filter array is so designed that the pixels are always in pairs of the same color. And for a low res / better SNR, the adjacent pixels of the same color are "merged" into larger pixels (that makes half of the total resolution). Though I don't have a clue how in detail that merge (or fusion) to one large pixel is done. Physically these are two adjacent pixels with the same size and same color sensitivity... Why makes a difference as if it was physically a larger pixel?
Serkan
Lets suppose you need 4 pixels to bin into 1 (probably not true, as 4 pixels have 2 green, 1 blue, one red....). Then you end up with a 9mp image. If you want to have more successful binning with red and blue also... you would need 4 blue, and red, I guess?
That then needs 4 by 4 pixels? Which gives 4 red, 4 blue and 8 green ones. 36mp / 4 / 4 = 2.26 mp?
[/quote]
If I remember correctly from the info in Fuji site, I guess the color filter array is so designed that the pixels are always in pairs of the same color. And for a low res / better SNR, the adjacent pixels of the same color are "merged" into larger pixels (that makes half of the total resolution). Though I don't have a clue how in detail that merge (or fusion) to one large pixel is done. Physically these are two adjacent pixels with the same size and same color sensitivity... Why makes a difference as if it was physically a larger pixel?
Serkan