Jrista- hey I wanted to thank you for taking the time to put that all together, I really appreciate it. Your comments and several others have really helped me with presenting this information in a much cleaner way.
Im a bit short on time right now, but I will do more DR tests in the future.
I have taken many different exposures (bracketed) and what happens is when clip out in the RAW file as it is opened, I don't have enough swatches on the strip to get a good reading.
Additionally, even at the same exposure settings and flash power, some cameras still exposure slightly differently, I see it all the time in side by side shooting.
I am very curious about the software you mention, is anything you are aware of that can measure the signal to noise ratio of a specific swatch? Maybe cropped? I have some ideas, but it would be easier to measure a specific swatch.
Im still curious if it would be reasonable to add the total Exposure Slider value (in this case 2.0) if my me more serves me correctly, to the swatch reading (lets say 32-33, would be 10.67EV, or 12.67 ev, minus the one over exposed swatch, for a total of 12.33EV.? If we could precisely measure the signal to noise ratio threshold on both swatches instead of eyeballing it, it could very well be a cheap and easy way to at least estimate the ball park DR.
BTW- the Epic Shootout on the D750 and 5Diii posted last night, thought I would share it with you here. Again, thank you guys for your help in clarifying what / how I was presenting it. http://youtu.be/EsZtUZvoeO0