Question on photography science fair project…?
I’m doing a science fair project dealing with all of the different causes of red eye in photos, and all that fun stuff. The one catch is that we have to measure the dependent variable of the experiment in metric units. Since the dependent variable is whether or not red eye appears, and to what intensity if it does, how would I measure this? This is a tenth grade level project, by the way.
Red eye is caused by light from the flash being reflected on the blood vessels on the retina of the eye.
Things that would affect this would be the dilation of the pupil (the diameter of the hole in front of the eye) which you would measure in millimeters.
Moving the flash to the side of the camera would increase the angle between the flash, the eye, and the camera lens. you could measure this in millimeters or meters along with the distance from the camera to the eye to calculate the angle of relection in radians.
The light intensity of the flash would have an effect and be measured in
Water – A Science fair project
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Light Meter LX1010B,50,000 Lux Luxmeter with lcd display $8.18 The digital lux meter LX1010B can measure up to 50,000 lux, approximately 5,000 footcandles. It’s used for checking the level of luminance, luminance is a measure of the amount of light falling on a surface. It is defined as: ‘the density of the luminous flux incident on a surface’. It is the quotient of the luminous flux by the area of the surface when the latter is uniformly illuminate… |
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Photography in Your Science Fair Project … |
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Photography in Your Science Fair Project … |
