Dynamic Range -- what it is, what it's good for, and how much you 'need'

Started Oct 17, 2011 | Discussions thread
Great Bustard
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Re: Let's put it all together.
In reply to Nemianiu Skqergl, Oct 18, 2011

Nemianiu Skqergl wrote:

FrankyM wrote:

It's easy to see that pixel size is not the player, but rather sensor size and efficiency. The pixels in the 5Dc sensor have 58% more area than the pixels in the 5D2 sensor, yet the 5D2 has less noise and more DR. Why? Quite simple -- the sensors are the same size, but the 5D2 sensor is more efficient.

It's a different technology.

chipworks says its the same technology

Canon seems to follow the ‘if it’s not broken, don’t fix it’ philosophy. For example, Figures 3a and 3b show the pixel BEOL from the EOS 5D and EOS 5D Mark II, respectively [6, 7]. Essentially the same fabrication process was used on these two sensors, fabbed three years apart and used in markedly different classes of DSLR. Despite a modest evolution in pixel architecture, to date Canon’s pixel fabrication seems to be locked down, and we suspect Canon is getting significant performance gains from its Digic line of image processors.

http://www.chipworks.com/ko/technical-competitive-analysis/resources/technology-blog/category/cmos-image-sensors/page/2

Bummer for Canon, if they don't pull some kind of rabbit out of their hat. Honestly, just eliminating their banding problems would go a long way to making things a lot better.

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