Just mostly for curiosity's sake. but I missed this a while ago. I was under the impression that the D7000 didn't use gapless microlenses like the D4/D3s, but apparently it does, partly explaining the high quantum efficiency of the Sony 16mp sensor. This was from an old Landingfield post:
They're referencing Chipworks electron micrographs and have a comparative samples of the Canon 5DmI and MarkII. Compared to either camera, it's striking how small the wiring underneath the colour filter array is compared to the microlens, in cross section, the D7000 looks like it has a nice clear path from the microlens to the light gathering substrate. By contrast, the original 5D looks the worse off.... relatively wide wiring and traditional gapped microlens array.
Also as an aside, apparently one of the keys to the D7000's low read noise is that the sensor clock is run at a very low rate, around 20khz with on-chip ADC's. By contrast, the D3and D3s use external ADC's running at 10mhz. Mostly old news, but then again, Chipworks isn't giving away their reports for free.
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