Diffusion, photo by Harold Davis. View this image larger.

Briefly noted: The sun shining through pockets of fog in this woodland valley created a perfectly diffused lighting source. I used a long exposure and a small aperture for high depth-of-field so I could fully capture the effect of going from the darker details of the path on the valley floor to the diffused sunlight higher up in contrast to the tree trunks.

Exposure data: 19mm, 15 seconds at f/22 and ISO 100, tripod mounted.