Tonight we just focused on the effects of MOTION in photography so shutter speed was the critical setting we needed. We used our light meters to set the ISO and aperture to play nicely with our available light.
The first thing we played with were light trails inside a dark classroom.
You can spell or draw anything in the air and the camera will capture it. This is a great activity to do with the kids (after you've figured out the settings). It works really well with sparklers on the fourth of July!
Our class took the extended shutters outside and captured the light trails from the moving traffic on Mill St.
Settings for these photos were slightly different than inside because there was much more ambient light. We increased the shutter speed slightly and raised the ISO (20", f/22, ISO 400)
Keep in mind with these long shutters, you need to set the camera down some place stable. No chance of holding it still!
The shutter is set between 1/15 and 1/60 of a second and then the photographer moves the camera, tracking the movement of the object. While tracking the object, and without stopping the movement, the photograph takes the picture. The slower shutter blurs the background, but the movement of the camera keeps the object in focus.