Nikon Autofocus Speedlight SB-27 Instruction Manual page 59

Groups I thru VI)
In 3D Multi-Sensor Balanced Fill-Flash operation with cameras in Group I,
press the "M" button to change the flash mode indicator from tØ to
t in order to cancel Monitor Preflash*. This will avoid exposure errors
when removing the SB-27 from the camera. (See page 63.)
*See page 86 on Monitor Preflash.
4
Set the camera's aperture based on the following equation and table.
f/stop ≧
ISO film speed and coefficient
ISO film speed
Coefficient*
*Numbers in parentheses ( ) represent coefficient for foot measurement.
For example, with a subject located 0.5m (1.6 ft) away using ISO 100
film, this is how you would calculate the aperture:
f/stop ≧
* An aperture of f/8 is suggested. We recommend using the smallest
possible aperture ( f/11 or f/16).
With a very light or dark-toned subject, you may not obtain a
correct exposure due to the subject's reflection factor. Use
exposure compensation to ensure correct exposure.
(See pages 60, 69.)
5
Confirm that the ready-light is ON, then release the
shutter to fire the flash.
coefficient
flash-to-subject distance (m)
100 or lower
4 (14)
4
＝ 8*
0.5
125–400 500 or higher
8 (26) 11 (36)
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