|Exploring a small slot canyon on a moonlit night|
|Illuminated landscape under moonlight|
|Badwater Salt Flats, Death Valley|
A point source of light can be though of as sending light in all directions in a sphere. As you get further away from the source, the sphere is much larger, so the light spreads out over a larger area and gets less bright. If you consider the geometry and math, you get the Inverse Square Law: the light intensity on the object illuminated is inversely proportional to the square of the distance.
|Charcoal kilns at night|
A lot of the early adopters of this type of light use it in more of a "crazy colors" mode, painting objects in a variety of shades. For this foreground texture I decided to use additive light blending, where you add two colors to make a third. I used blue and red to see if they'd blend to make purple where they overlap. I tried to send the red light in from the left side, and the blue light up the eroded depression from the right side. For simplicity I shot the red and blue in separate 30-second exposures, and blended the two images in the free StarStaX app.
|Light Blending on The Racetrack playa in Death Valley National Park|
To see other lights I've tried and carry, read my prior post:
Gearing up for 2015 With a ProtoMachines LED2 Lighthttp://activesole.blogspot.com/2015/03/protomachines-led2-bgb-light-white-balance.html