Recently I got myself a 5D classic to use with Zeiss primes lenses. I have used it quite a lot, and still I haven’t had issues with either noise or lack of dynamic range. Ok, I have avoided putting it in very difficult lighting conditions, BUT, I haven’t had any issue taking the pictures I wanted to make, or from taking a photo worth taking. For most use, I think DR is the most overrated quality in a digital camera. The camera world has been stupified and lost perspective due to the hype around DR.
Just to be clear (as things sometimes get skewed on here) I’m not suggesting older models were bad cameras, just that the newer processes Canon implimented 2 years ago or so have made improvements. I’ve never had a shot on any camera (and Ive had a LOT and they were all canon) be noisy to the point of distraction or unusable unless either I totally F’ed the shot or the light was so so so poor that no FF camera could have salvaged it.
The highest number of shots I hit each year when ranked by ISO are easily 3200-6400 because of shooting live indoor dance performances with difficult lighting, no ability to strobe (cuz it’s live), and having to set minimum shutter speeds at 400-500 or so.
Both the 1DX and 1DX2 have provided very pleasing results in that dept