Hoarfrost

 

Near Marine, Illinois
Photograph by Tom Atwood


I decided to watch the sunrise near this tree not far from the intersection of Rt 4 and Highway 143 in Madison County. For most of the early morning, the tree was a silhouette against against the dawn sky. But as the sun came up I could see frost on the upper branches of the tree. Known as hoarfrost, or air hoar, it gave the tree a white glow I hadn't expected. Shutter: 1/125; Aperture: f/7.1; ISO: 100; Focal length: 18 mm