As we saw in the table SENSORS, which can be read online or download it to your computer, an Olympus camera with a four thirds sensor (Four Thirds), has a size equal to a photosite Canon 60D, 7D, T3i and the like. View SENSORS II.
remember that the quality of the picture depends on the quality of the lens used, the size of the photosite, and algorithms (programs) for processing each manufacturer operates through its processors within its chambers .
With the lens I use, the optical quality is well above the average size photosites of the same, and the level of processing is more than good.
So now we see where the difference is because the APS-C sensors are larger than four thirds sensor, because the former has an area of \u200b\u200b337.27 mm. square, while the latter have mm.cuadrados 224.90. That is, APS-C sensors are 50% larger than the four-thirds. Thus
Canon cameras listed above have a resolution of 18 megapixels, versus the 12 that got my Olympus. Given the size of their sensors, may have the same quality as my Olympus, with a resolution 50% higher.
Well and all that resolution ... it good for?: The resolution is a measure of quantity, not quality ... we agree? ... estonces, more "quantity" will have a file with more units of information (pixels), which will serve primarily to two things: to make larger prints, and crop photos without losing much information
To give you an idea with my 12 megapixel me I can print photos of 40 x 30 cm. no problem, and working properly seat the file with a resolution enhancement bicubic interpolation in Photoshop, I made some pretty good prints up to 100 x 75 cm. I put this
for stakeholders to have a parameter on the subject of the resolution, and if they are fans of quality rather than size (40 x 30 to 60 x 30 are good sizes), and need photos with very little noise, no cone forget that there are cameras Nikon D 700, with 12 megapixels, but with really huge photosites (nearly 56 square microns in area).
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