Nikon EL2 instruction manual Amount of light reaching the film plane is deter

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TIP500

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Deliberate one-step underexposure

	Exposure Control
	The amount of light reaching the film plane is deter-
	mined by a combination of the lens aperture and the
	shutter speed. Since the two are interrelated, different
	combinations will give the same exposure. A 1-step
	change in the shutter speed, or a 1-stop change in the
	aperture setting, will either halve or double the exposure.
	For example, a shutter speed of 1/125 second passes
	twice as much light as a setting of 1/250 second, and
	only half as much light as a speed of 1/60 second; for an
	aperture setting of f/11, twice as much light as f/16, and
c	half as much as f/8, is passed. This feature characterizes
	the operation throughout the available range of shutter
5D0iP	speeds and aperture settings. With this in mind, it's easy
	to see that if a correct exposure for a scene is 1 /125 at
250
	f/11, then 1/60 at f/16 or 1/250 at f/8 will be equally
30	acceptable.

15The best combination for your needs will depend on the

I	results desired. Use fast shutter speeds to freeze motion,
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2or use slow speeds to produce deliberate and creative

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2 blur. Small apertures give greater depth of field, while

< large apertures restrict sharp focus to the main subject.

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The creative selection of both speeds and apertures will greatly enhance your photography.

. . . and one-step overexposure,

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