<div id="linkdxomark">This a comment for <a href="http://www.dxomark.com/index.php/Cameras/Camera-Sensor-Database/Nikon/D3200">this page on the website</a></div>A $700 dollar camera scores the same as a $3500 camera. Canon is really falling behind in sensor technology.
Its just score, it doesnt mean that much. In real life, its not terribly usable camera. Very small = bad handling with most lenses. Miniature OVF compared to 100% big OVF in 5DMK3. 4 FPS and shallow buffer. AF will be "so-so" as is usual in begginers camera.
SNR at base ISO is 36.5 dB. Which means its noisy even at base ISO (common trait to these sensors). Even CFA, which was decent in Nikon cameras is crappy (cause its optimised for high ISO.. well in this case to make base ISO usable
). AA filter from sample photos doesnt seem exactly great.
Those last things are same for 5DMK3 too. Low quality CFA and AA filters. Or rather say, specificaly chosen both for high ISO performance and causing camera to be near color blind.
So overall. This thing is usable as camera, but I wouldnt like it even for free. Canon offerings in starter/begginer segment is similary crappy tho. But this thing is no threat to 5DMK3.
If there is some threat to 5DMK3, then its D800. But truth is that in reality D800 and 5DMK3 are quite different cameras for different customers. Both can do same things, but each of them is more suitable for different scenarios.
I agree that Canon current generation of sensors is falling behind. But truth is, that there are now "new" sensors. Everything is just re-hash of old technology. I think Canon is simply trying to milk customers as much as possible. Nikon cant do that, cause 1) they are Sony dependant 2) they dont want to loose customers.
Im not worrying about Canon not being able to create some next-gen sensor. They are, they just dont want to release it before they squeeze maximum from last generation.