I got into my old film archive and was eager to clean up this picture which prior to processing looked like it had measles. It was a shame because it was one of those once in a life time type of shots. Yosemite does no co-operate with shots at dusk all that often.
The high speed film combined with low light really made for a splotchy sky.
I used Dfine, which is a programs for removing noise from digital images to try to do something about the grain. I used the automatic noise measuring mode, and this was the result.