Here's an interesting flash photography project. With an inexpensive Fresnel lens, you can concentrate the light from your flash. You'll be able to shoot with a smaller aperture and a shorter flash duration. This will give you a greater depth of focus and will allow you to 'freeze' motion at higher speeds. The trade-off is that the light will be concentrated toward the center of the frame. This project shows you how you can investigate that trade-off and find out how you can best use your flash for 'freezing' motion.

Additional Tags

electronic flashes, science fair project, digital photography & video, photography, science buddies, science project

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Classroom Considerations

• Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)