A great tutorial by Dennis Calvert. The above image is a long exposure shot as JPG and is straight from the camera. Here’s a walk through of how it was made. (Canon 5DmkIII | Exposure 199 | ISO Speed 1250 | f/5.6 | 14mm)
Three different lights were used to light up the environment. Two flashlights and a canon speedlite. Above are the two flashlights. You can see how the Maglite is a lot warmer than the Coast HP21. Below shows how the three lights were layered to light up the scene.
The first light was a wirelessly triggered speedlite behind Josh and facing out toward the camera.
The second light was a Coast HP21. This one was held by Josh and it was pointed at the wall behind him. You can see his hand right hand is a little blurry from slightly moving the flashlight during the long exposure.
A Maglight was used to light up the exterior. I thought its warmer tone looked better on the stone. The blue dots were created with battery powered string lights that I have modified by splicing a momentary switch into the wire. I shot this image with a 14mm lens which allowed me to get very close to the lens and turn the string lights on and off a few times to give the illusion of dots of light floating in the air.
Here’s some video from the trip. Most of it was shot with GoPro 3 Black Edition I picked up a while back. There’s a timelapse about a minute in that shows most of the light painting session. The two clips of the bugs were from a 5DmkIII and the timelapse was shot on a 7D.