Manual exposure mode, How to select f/stop and shutter speeds, A—automatic exposure mode – Nikon FG User Manual

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Manual exposure mode

Manual operation allows you to shoot at your choice

of any combination of the f/stops and eleven shutter
speeds on the camera’s dials. (Note that you cannot

set shutter speed between numbered settings.) By

varying these combinations, you can achieve not only

correct exposure but also such special effects as
under- or overexposure, blurred action, etc. Manual

is also valuable to develop your photographic instincts

and skills, and is additionally recommended when an
electronic flash other than the Nikon dedicated flash

unit is used.

How to select f/stop and shutter speeds
Exposure is determined by the combination of th

shutter speed and f/stop (aperture opening). As th

numbers on either the f/stop or shutter speed dia

increase by one value, the amount of light enterir

the film is reduced by approximately one half. Fc

example, the amount of light at f/125 sec. is aboi

one-half that at 1/60 sec., and the amount of light:

t/16 Is one-half that at f/11. Brighter scenes requit

either faster shutter speeds or smaller apertut

openings (larger f/numbers) or a combination of bot
which will give the same amount of exposure: dark«
scenes require the reverse. For example, 1/250 sei
at f/8 is the same as either 1/500 sec. at f/5.6 <

1/125 sec. at f/11.

Shutter speed/aperture combination to give
the same exposure.

Shutter speed

(sec.)

1/1000

1/500

1/250

1/125

1/6C

Aperture

(f/number)

5.6

Fast shutter speed

(freeze action)

Slow shutter speed

(intentional blur)

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