Seriously, the data are read out separately at the same time from both halves and put together, halves the time it takes to empty the rows, yes one row at the time has to be read out.
Erik, I would think this is only the case with CCD. The image data of CMOS are read out directly from the indivisual buffers for the pixels. In the case of CMOS, it may just be the matter of the production process.
Sten, Nikon seem to have addressed the amp noise...finally.
That said, hotter place on the planet may be a better place to test this. Larry, when are you going to get your D800?
Edited by Akira, 13 May 2012 - 20:06 .