My friend and professional photographer Andre Costantini has this great shot in his presentation that really shows the effect of a slow shutter speed. So while at the park last week, I bravely got on a tire swing with my subject and we were promptly spun until I wanted to throw up. In fact, I closed my eyes and just kept shooting and screaming. But it was worth it to show you how a slow shutter speed setting can make a really fun shot. I had my camera set at ISO 200 as it was a really nice bright day and I put the camera on high continuous shooting. I then set the camera to F22 while in the aperture priority mode, which in turn gave me a shutter speed of 1/30th of a second. This slow shutter speed cannot stop the fast action of the tire spinning around, so the sky and trees in the background are wonderful streaky blurs. Yet the subject is in focus (well, relatively speaking and I will explain that in a minute). The reason the subject stays in focus even though the shutter speed is so slow, is that in relation to each other, our position stays the same. It’s as if we were just standing still looking at each other. Now, he is admittedly slightly out of focus since he was a little too close to the camera and had I just kept my eyes open while shooting, I would have spotted this and leaned back a touch. So if you can get yourself on a fast carnival or theme park ride, or a tire swing or one of those merry-go-round things on the playground, position yourself so that you and your subject face each other and relative to each other do not move (i.e., in the same seat), and shoot on a slow shutter speed to really show off the motion of the ride. Tell your subject not to move too much, especially closer or further away from the camera. And have fun. Maybe take some Dramamine® before you head out to take this shot.