Mornnb wrote in post #17419936
Hint, the Sony is the one with less noise.
Ok, this is exactly why some of the DR talk bothers me a little (just a little ). Those example images show nothing with regards to DR. I am not seeing any obvious differences between a 12 Evs and 14 Evs DR. Where are the blown highlights in the one that are fully recovered in the other? Same with shadow detail. This scene looks well within 12 Evs.
BUT, as you point out, one has noise in the shadows. That is NOT a DR issue. It IS an image quality issue stemming from the sensor's performance at the lower end of its dynamic range. I also have a strong preference for the Sony sensor due to its excellent performance in shadow detail. Such details can be recovered cleanly with very good color integrity. Not so with the 5D III's sensor.
Back to the 5DS: OK, so we know the DR is the same as the 5D III (on the testimony of Canon rep Chuck Westfall in his Dpreview interview). What we don't know yet is how well the 5DS sensor performs at the bottom end of it's dynamic range. Will it be clean with good color integrity? Or will it be like the 5D III and suffer a lot of ugly pattern noise and chroma noise with greatly diminished color integrity? This we do not yet know until we see the raw files.
To summarize, my plea is for the DR discussion to take a somewhat more nuanced tone. Let's not simply parrot the term "DR" as a catch-all term to mean any and all low-ISO sensor shortcomings.
That said, I also have a plea for those who are weary of the constant complaining about DR on the 5DS: The 5DS is a landscape, architecture, and studio camera - Canon is deliberately marketing it as such - so this of all Canon cameras is the one that really needs greater DR. Those genres are the ones with the greatest need. When Canon releases the 5D IV, and people are whinging about DR, tell them to shut up and go discuss the 5DS, which of all Canon cameras should be the DR king.
Look, if Canon released a 1DX II that only shot 7 fps and capped out at ISO 25600 there would be a lot of upset customers, right? Because that camera should dominate in those areas. Likewise, for landscapes and architecture, the 5DS should dominate at resolution, dynamic range, and low-ISO shadow detail. Potential customers have every reason and right to express frustration when we now know that the 5DS comes up short in one of those three areas.