Images from Chris McCaw's Sunburn series:
"In this process the sun burns its path onto the light sensitive negative. After hours of exposure, the sky, as a result of the extremely intense light exposure, reacts in an effect called solarization- a natural reversal of tonality through over exposure. The resulting negative literally has a burnt hole in it with the landscape in complete reversal. "
"My favorite part is watching smoke come out of the camera during the exposure and the faint smell of roasted marshmallows as the gelatin cooks!"