File under “I hope this true, but remain quite skeptical” Category
DSLR Magazine has an article up about Canon’s intentions with the 5D replacement (referred to here and there as the Mark II). It goes into quite a bit of detail as to what and why Canon is doing with the Mark II and where Canon might be headed. To paraphrase, because of the advancements made with the new DIGIC IV processing (now seen in the 50D and soon to appear in the G10) Canon feels confortable moving to a 21 megapixel sensor. And judging by this article, new sensor technology and DIGIC IV will be the key to improved image quality, noise management, tonal range, and dynamic range in the Canon EOS 5D Mark II and future cameras.
First the good stuff (google translation):
One reason for this delay was the presentation of the Nikon D3, with its very high performance at high ISO. The information services could learn from Canon, Nikon’s planned presentation of a model that would compete directly with the future replacement for the EOS 5D, D700, and what is worse: that would incorporate the same sensor and processor and the Nikon D3 that its benefits in terms of image quality at high ISO, and in general, it would be superb. Nor lacks a system of prevention against dust, Live-View, etc.. But the key concern was the sensor …And Canon had hoped to have ready its latest advances in CMOS sensors, some of whom tried-with total discretion in CMOS-APS-C size incorporated into the 50D.
But the version of CMOS 24 x 36 mm incorporated into the EOS 5D Mark II will not be like the 15-megapixel APS-C of the 50D nor of 12.3 megapixels such as the D3 and D700, but 21 megapixels as DSLR Magazine have confirmed to all sources of solvency.
Yes: 21-megapixels, and may think the same thing we are thinking of us … that is where the 1Ds Mark III and where it’s located its possible replacement.-DSLR Magazine
Some tough reading I know, but here’s the how…
To contribute to this reduction has worked at various levels within each pixel. As you know, one of the advantages of CMOS sensors is that part of the accused is already in each pixel, before emptying each load, and this game gives you a lot about what can be done in a CCD. To begin with, what they have done engineers Canon is decreasing the distance between the pixel and its controller, in addition to doing “rush” to a lower voltage. This will improve the efficiency electric heating decreases and therefore noise. For the 21-megapixel sensor for the 5D Mark II envisages a step further gain sensitivity rather than noise on the 50D.
In addition, there is a very complicated technology partnership p í Xela, something that previously was not possible until the availability of DIGIC processor IV. The operation is to associate in pairs or 2.4 to 8 pixels (for now), to examine their loads, exploring the noise of each and make an averaged low, all this, of course, before creating the JPEG or offer RAW, so this is a mechanism for reducing noise that would allow some very good levels of balance signal to noise ratio even with sensors 24 x 36 mm and more than 40 megap í Xel resolution.
While we resolution, perhaps here come two of the most spectacular advances of new technologies for Canon CMOS rather than the 50D but especially of the future “5D Mark II”: the new coverage of microlenses and new low pass filter or even …its eventual elimination.
-DSLR Magazine
Interesting, exciting, true?
Link to translated article here…
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