Orangutan said:
jrista said:
I wouldn't get your hopes up quite that much. Canon has already stated that the dynamic range of the 5Ds/R will be roughly the same as the 5D III. That's strait from the horses mouth,
Possibly because he didn't want to acknowledge any deficiency in the 5D3. Unless the gain is large enough to be marketable (and transferable to future products) there's no good reason to disparage your current camera line-up until the 5D4 is out.
I find that to be inverted thinking. I've never seen Canon take that particular tack with their statements. Canon certainly does their fair share of face saving and verbal maneuvering, but when they aren't simply telling the truth, they are either excessively obfuscatory, or blatantly lying, one of the two.
Besides, what I've seen with the 5Ds RAWs on imaging resource, I think Canon was telling the truth. Chroma noise has been improved considerably, however luminance noise is about the same, and DR appears to be about the same.
I think people will be happier pushing shadows more on a 5Ds, because it's cleaner, finer, more random noise. It has a prettier aesthetic. However in terms of actual sensor dynamic range, I would expect something in the low 11 stops range. The 7D II achieved 11.11 stops Screen DR, and the 5Ds has almost the same size pixels. I would expect something similar, 11.1-11.3 stops of Screen DR. On the Print DR score, the 7D II achieved 11.78 stops. Because the 5Ds has a sensor frame twice the size (and more), I expect it to fare better on the Print DR score. It should score better than the 6D if it has similar dark current to the 7D II, however it does have the smaller pixels, which might counteract some of the benefit of the larger sensor. I'd put Print DR somewhere between 11.9 and 12.2 stops.
For the record, the 5D III scored 10.97 Screen DR and 11.74 Print DR.
Given these statistics, a Screen DR score of 11.1-11.3 would put it pretty close to the 5D III's 11, and a Print DR score of 11.9-12.1 would put it pretty close to the 5D III's 11.7. I think that sounds pretty much in line with Canon's statements about DR being similar, in line with the IQ and technology improvements in the 6D and 7D II, and in line with what we can already see with the image data from Imaging Resource. The reduction in chroma noise is fairly significant and the luminance noise has a good aesthetic, and I can see imagers being more willing to push shadows with noise like that...and that is in line with statements of pros who have actually used the 5Ds.
Anyway, that would be my logical assessment. Improvement, a solid improvement on the chroma noise front (which I personally welcome very, very much...I really hate the chroma noise in the 5D III, and if the 5D IV has anything like the clean, random luminance noise of the 5Ds, I'll be pretty happy with it) but I wouldn't expect anything radical, like DR topping 13 stops (and certainly not 14 stops).
