Have you ever wondered how many spectators in the stands actually get satisfactory pictures at large night-time sporting events? You know, that familiar scene when thousands of flash bulbs are popping in the stands? Problem is the flash on a typical point-and-shoot camera can only light a scene up to about 12 feet. Even powerful professional grade flash units can’t send a sufficient blast of light from the stands to the middle of the field. It’s because of that ubiquitous “inverse square law” you may have heard about in high school. For example, an object 2 yards from the camera will only receive ¼ of the light compared to an object 1 yard away. And 4 yards away will receive 1/16th of the light, and so on. You can do the math if you want, but the fall-off is pretty rapid and an athlete 100 yards away isn’t getting much benefit from the tiny pin point of light on the camera. The opposite is also true. If you push your camera right into someone’s face and take a shot, not only will they be annoyed, but chances are the picture will make them look like a ghost.
If you have your camera’s manual you should be able to find the minimum and maximum flash distances. What’s that you say, no manual? Not a problem. A little experimentation is all it takes. In a darkish room place a willing subject a few feet away from a wall. Oh, and ask them to close their eyes for this exercise. Take several pictures from 1 ft away, then 2ft, 4ft, 8ft and 16ft. Unless you have a really big room, you might have to do the last pictures outdoors. Discard the images that are too bright and too dark. You now have a guide to the distances where your camera and flash work best.
Back to the night-time sports event. If your camera has a night-time or dusk setting, try it. Keep your camera steady (more on this in a future discussion) and squeeze the shutter release. The flash probably won’t fire, but the camera will do its best to get the picture. The light out on the field may just be bright enough to record that historic event.
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Duncan Moody
www.sabelaimages.com