Low Tide at Blue Hour
The tide goes out far enough here that the rocks turn into a second sky. You get about eleven minutes before the colour drains.
Tag: long exposure
Twenty Minutes of Rotation
Star trails are just arithmetic: find the pole, point at it, and let the planet do the composition.
Six Seconds of Surf
Long enough to smooth the chop, short enough to keep the shape of the break. The window is narrower than you would think.