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

Briefly noted: A brisk, cold wind blew as the sun set over the Pacific. Mark and I were perched on the edge of a crumbling cliff. As the light of sunset burnished the Pacific edge of Point Reyes, I hurried to make a few exposures, hoping the wind wouldn’t blow over my tripod, or blow me over the cliff (Mark’s tripod did get blown over).

[Nikon D300, 18-200 VR zomm lens at 18mm (27mm in 35mm terms), circular polarizer, 1/4 of a second at f/13 and ISO 100, tripod mounted.]