Manual Exposure Mode; How To Select F/Stop And Shutter Speeds; Shutter Speed/Aperture Combination To Give The Same Exposure - Nikon FG Instruction Manual

Manual exposure mode
Manual operation allows you to shoot at your choice
of any combination of the flstops 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 fla sh other than the Nikon dedicated flash
unit is used
How to select f/stop and shutter speeds
Exposure is determined by the co mbination of the
sh utter speed and f/stop (aperture opening) As the
numbe rs on either the flstop or shu tter spe ed dials
increase by one value, the amount of light entering
the film is reduced by approximately one half. For
example, the amount of light
at 1/125
sec is about
one-half that at 1/60 sec., and the amount of light at
fl16 is one-half that at fl11 . Brighter scenes require
either faster shu tter speeds or smaller aperture
openings (la rger f Inumbers) or a comb ination of both
which will give the same amount of exposure; darker
scenes require the re verse For example , 1/250 sec .
at f/8 is the same as either 11500 sec at f15 .6 or
1/125 sec . at f111 .
Shutter speed/aperture combination to give
the same exposure.
1/1000
1/ 500 1/ 250
1/125
1/60
4 5 .6 8 11
16
35