We were camping in Yosemite and when I saw the clouds that afternoon, I drove to this point near the east entrance. After scouting a good location I waited for about an hour until the light was just right. All this happened in a matter of minutes.
I own a Sony a77 that has built in HDR. The camera does a great job, but I still tweaked the image until I was able to create what I saw with my eyes. Taken with Sony77 and zeiss lens. ISO 100 f/10 1/30 18mm
Taken June 2013 near the east entrance to Yosemite National Park as a spring storm was passing through.