Ray Lenore

Where in Barcelona is a 70mm projector? 
As far as I know the only IMAX 70mm film projector in continental Europe is in Prague. 

Barcelona IMAX at diagonal mar is digital and it’s mainly dubbed films all the time. 

I think David summarized pretty well. Numbers don’t tell everything. Xyla charts are good for scientific comparative purposes between cameras but they don’t tell me how a sensor “see”. For testing cameras I always use models and color/grey charts. Underexposing and overexposing. Then we put those images trough specific pipelines to determine which are the “better-to-us” ways of dealing with those images in post. How you treat them in post can alter quite vastly what and how a sensor see.
After that I have a perfect idea what’s the dynamic range of the sensor for my purposes, taking into account the workflow and the final look needed. To me you can’t separate that for the equation, it’s not only the sensor it’s the whole process what matters. 

Cinefade and “depth of field racks” have been used quite extensively for the past years on Spanish football (soccer for US) TV coverage with a Sony Venice on a steadicam from the sidelines. 
It looks too funky for my taste but each to their own. 

I know it’s a dead thread but I thought I should leave it here in case someone is looking for it. I’m surprise about the findings of your Sekonics.

Maybe it has been a major software change (I highly doubt it as I’ve never updated mine) but my Sekonic 858 from 2019 is able to read 0.01 differences. Down to 0.10lx.

I haven’t used the spectra but I’m not sure how much more decimal can you get than this.