PanLi0
Requirement 1 & 3
I took this photo in discovery park and satisfies requirement 1 & 3. I put steel wool into a whisk and connected by a rope. And then i rotate the rope. I set my camera to manual control mode so i can control all the settings. I set aperture to f/2.8 because it is pretty dark in the discovery park. And then i set shutter speed to 30s, which gives me a plenty of time to do the light painting. Then i set iso to 125 to get a less noise photo. I did the post process with my iPhone. I used snapseed and vscocam to do the post process by increasing sharpness, contrast and saturation and add purple to the shadow.
Requirement 1 & 3
I took this photo in discovery park and satisfies requirement 1 & 3. I put steel wool into a whisk and connected by a rope. And then i rotate the rope. I set my camera to manual control mode so i can control all the settings. I set aperture to f/2.8 because it is pretty dark in the discovery park. And then i set shutter speed to 30s, which gives me a plenty of time to do the light painting. Then i set iso to 125 to get a less noise photo. I did the post process with my iPhone. I used snapseed and vscocam to do the post process by increasing sharpness, contrast and saturation and add purple to the shadow.