I took a photograph of Half Dome in Yosemite National Park just after a snow storm. Before I took the photograph, I checked the light readings with a spot meter and found that the Subject Brightness Range [SBR] was 12 f/stops. I used Kodak Tri-X at box speed and developed normally in XTOL replenished. The film easily captured the full range without blowing out the highlights and catching details in the darkest parts. The tones of the clouds were different than the tones of the snow on the top of Half Dome. I have been told that film can handle 14 f/stops and I could see film covering 20 f/stops.

Steve