Why ISO 6400? Why 1/6400?
Just curious... 
Darn good questions!! It seemed very dark at the time apart from the shafts of sunlight which were very, very bright. But also the smoke was swirling ferociously and I wanted to stop it. Inevitably it took some post processing on the lights and darks. When I looked up the EXIF data to put here, it did seem more than a touch bizarre, I will agree, but personally, I quite liked the end result!!!
