dtaylor said:JR said:Why would you say that based on that picture? Unless you are into really large print, you will not see much different between 22MP and 36MP. You will see a big difference however in the better ISO performance from a 5DmkIII for the every day use (hopefully anyway).
This is a misconception. Sensor size and technology level are the primary drivers of high ISO performance, not pixel size. I wouldn't bet on a 5D3 having better high ISO just based on pixel size.
That's not a misconception, that's physics.
All else being equal, larger photo sites collect more light, and will require less amplification at a given ISO setting, producing less noise.