This thread is all about pixel peeping for high contrast landscape shots. It is not about studio shots. I do not mean to bash any existing exotic gear, but I simply cannot resist how the latest technology evolves.
Ansel Adams never deliberately challenged the sun. He developed the "Zone System" to optimize exposure for dynamic range and pixel peeping. While he emphasized the importance of the film, I bet the sensor (or digital back) also plays an important part, at least as important as the glasses!
Here is the Dante's Inferno I have just visited: Phase One IQ250, Alpa 12 SWA, Rodenstock 23mm HR, Rodenstock 40mm HR
Below is my test shot at Durdle Door, UK. -6mm shift downwards was applied to the Rodenstock 23mm HR lens, with Rodenstock centerfilter (2.5 stops), Lee ND grad 0.6 (2 stops) and Lee Big Stopper (10 stops).
This was a single exposure (no blending or bracketing) to stress test the dynamic range of the Sony CMOS sensor. The shadow recovery is as awesome as that of the Nikon D800 (similar Sony sensor technology)!