Nikon FM2 Bedienungsanleitung PDF herunterladen (Seite 28)

The amount of light reaching the film plane is determined by a

combination of the shutter speed and the lens aperture. A

shutter speed of 1/500 sec. lets in twice as much light as a set

ting of 1/1000 sec., and only half as much light as 1/250 sec. An

aperture setting of f/11 lets in twice as much light as f/16, half as

much as f/8. Thus, if the correct exposure for a particular

picture-taking situation is 1/500 at f/11, then 1/250 at f/16 or

1/1000 at f/8 will give the same exposure. It is very convenient

to know this interrelation when considering depth of field. The

following table illustrates the interrelation between shutter

speed and aperture.

Exposure determination

Shutter speed

(sec.)

1/4000

1/2000 1/1000 1/500

1/250

Aperture

(f/number)

4 5.6 8 11 16

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 77 78

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Nikon FM2 Bedienungsanleitung Seite 28