Sodium Emission vs. Rayleigh Scattering

We’re not far from the ninth anniversary of the founding of Decaseconds, and I came upon this arresting image of Berkeley Marina, the Marin Headlands, and the Golden Gate Bridge (never before published here) while searching for just the right anniversary shot. I’m fascinated by the way the orange emission of sodium vapor lamps lighting Berkeley (I’m sure now all swapped for white LEDs) matches the Rayleigh-scattered oranges of the winter sunset. The same wavelengths of light, coming from completely different mechanisms.

Sodium Emission vs. Rayleigh Scattering

Above the Waterfall at Sunset

Quadcopter drones give photographers access to all kinds of new angles for shots, but also introduce challenges that did not have to previously be considered. I should have thought in more detail about the orientation of the impressive Lampson Falls—and considered that I wouldn’t be able to get the steep face of the falls and the setting sun in the same shot. I guess I’ll have to get up at dawn for the “proper” version of this picture.

Above the Waterfall at Sunset

Glass Bridges of Johnson Hall

I often show what I think of as the front of Johnson Hall of Science, but inspection of this image (particularly the top of the brick wing on the left) shows that the building’s name, and thus its front, are on this side. The dramatic glass structures extending between and out from the wings lend credence to the idea.

Glass Bridges of Johnson Hall

Summer Sky Over Hartford

There’s a bit of irony that a 10-year reunion, an opportunity to wander around campus and feel nostalgia, occurs during the summer—a season when I never experienced campus when actually a student.

My favorite little detail of this image is the airplane contrail just past the crescent moon.

Summer Sky Over Hartford

Fields of St. Lawrence

Battling the breezes of late summer above the fallow fields of the North Country, this image might appear to be capturing the edge of a farm. In fact, this is the southeastern reach of St. Lawrence University’s rural campus. The stables, home of our IHSA riding team, are off in the distance.

Fields of St. Lawrence

New Year: Skyline Watcher with Cactus

The year 2020 is here! “Cautious optimism” remains my default lens for the future, but a look back over the photography of the past decade (like this shot from the Molecular Foundry overlooking San Francisco during my sabbatical), I’m feeling a bit excited. The first major upgrade in my shooting platform is planned for 2020 (the Nikon D7000 is getting a well-deserved retirement) and I can’t imagine the improvement I’ll see when I jump an entire decade forwards in camera technology.

Skyline Watcher with Cactus