Nikon SB 27 Instruction Manual - Page 57

thru VI

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Page 57 highlights

thru VI) 4 Set up the diffuser card as shown. The SB-27's built-in diffuser card is effective for close-up flash operation from 0.3m (1 ft). -Avoid using the built-in diffuser card for close-up flash operation in non-TTL Auto Flash mode. (You cannot obtain a correct exposure if the diffuser card is set.) 5 Set the camera's aperture based on the following equation and table. GTUPQ ʾɹ DPFGGJDJFOU GMBTIUPTVCKFDUEJTUBODF N ISO film speed and coefficient ISO film speed 100 or lower 125-400 500 or higher Coefficient* 1 (3.3) 2 (6.6) 2.8 (9.2) *Numbers in parentheses ( ) represent coefficient for foot measurement. For example, with a subject located 0.5m (1.6 ft) away using ISO 100 film and a bounce flash adapter, this is how you would calculate the aperture: GTUPQʾ   ʹ  * An aperture of f/2 is suggested. We recommend using the smallest possible aperture ( f/2.8 or f/4). 6 Confirm that the ready-light is ON, then release the shutter to fire the flash. TTL A M ISO ft m 60 18 30 9 15 4 72 41 2 0.6 If the ready-light blinks for 3 seconds after shooting, see page 40. 

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57
4
Set up the diffuser card as shown.
The SB-27's built-in diffuser card is effective for close-up flash
operation from 0.3m (1 ft).
—Avoid using the built-in diffuser card for close-up flash operation in non-TTL Auto
Flash mode. (You cannot obtain a correct exposure if the diffuser card is set.)
thru VI)
6
Confirm that the ready-light is ON, then release the shutter to fire the flash.
TTL
A
M
ISO
ft
m
60
30
15
7
4
2
18
9
4
2
1
0.6
If the ready-light blinks for 3 seconds after shooting, see page 40.
f/stop ≧
1
＝ 2*
0.5
For example, with a subject located 0.5m (1.6 ft) away using ISO 100 film
and a bounce flash adapter, this is how you would calculate the aperture:
* An aperture of f/2 is suggested. We recommend using the smallest possible aperture ( f/2.8 or f/4).
5
Set the camera’s aperture based on the following equation and table.
f/stop
≧　
coefficient
flash-to-subject distance (m)
ISO film speed and coefficient
ISO film speed
100 or lower
125–400
500 or higher
Coefficient*
1 (3.3)
2 (6.6)
2.8 (9.2)
*Numbers in parentheses ( ) represent coefficient for foot measurement.