What is DR? I assume you mean the range of light and shadow that can be captured. But, here's the thing, in PS, using layers, you can get a a wider range than is even what your eyes see. This, to me, does not look real.
DR = Dynamic Range
Remember, even with today's awesome sensors our eyes have a larger DR then a camera does. The other thing to remember is that the computer built into us, our brain works with our eyes to balance between the light and dark of a scene.
Like for instance with a reflection. A reflection is typically 2 stops of light less then the sky, that's how a camera will capture it. But most often when we view that same scene with our eyes, our brain actually balances the scene so that the reflection and sky appear to be much closer in exposure then they really are.
And the same is for most scenes we see. Until it really starts getting very dark, our eyes will brighten up the ground naturally. Take a super bright sunny scene, when we view it with our eyes, the ground around you doesn't go dark like it's at night does it? But if you photographed it with your camera and exposed for the sun properly, the ground would go very dark.
Some people make the mistake of taking what their camera captures as reality, it's not. What we actually see is the reality that we perceive. The key is to remember that when are processing and then balancing the same the same as our eyes saw it.