Manufacturers: What Is Your Method For Calculating The Dynamic Range Of A Camera?

Since there are quite a few manufacturers on IPVM, maybe some would be willing to describe their method of determining the dB values shown on their own spec sheets.

Procedures/formulas/labs used welcome.

It's a fair question I think, considering the confusion.

Note: I am only asking about DR, not low light lux or S/N.

Login to read this IPVM discussion.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.